diff --git a/asm/macros/scrcmd.inc b/asm/macros/scrcmd.inc
index dc03e20a4a..36fd81ce33 100644
--- a/asm/macros/scrcmd.inc
+++ b/asm/macros/scrcmd.inc
@@ -1376,9 +1376,9 @@
     .short \arg0
     .endm
 
-    .macro ScrCmd_0EA arg0
+    .macro PlayTrainerEncounterBGM trainerID
     .short 234
-    .short \arg0
+    .short \trainerID
     .endm
 
     .macro BlackOutFromBattle
diff --git a/generated/meson.build b/generated/meson.build
index eafabc0974..d88d1c0a0f 100644
--- a/generated/meson.build
+++ b/generated/meson.build
@@ -84,7 +84,7 @@ metang_generators = {
     'species': { 'type': 'enum', 'tag': 'Species' },
     'species_data_params': { 'type': 'enum', 'tag': 'SpeciesDataParam' },
     'text_banks': { 'type': 'enum', 'tag': 'TextBank' },
-    'trainers': { 'type': 'enum', 'tag': 'Trainer' },
+    'trainers': { 'type': 'enum', 'tag': 'TrainerID' },
     'trainer_classes': { 'type': 'enum', 'tag': 'TrainerClass' },
     'trainer_score_events': { 'type': 'enum', 'tag': 'TrainerScoreEvent' },
     'trainer_types': { 'type': 'enum', 'tag': 'TrainerType' },
diff --git a/generated/sdat.txt b/generated/sdat.txt
index c63e410cc4..b7c3d9baa3 100644
--- a/generated/sdat.txt
+++ b/generated/sdat.txt
@@ -1048,7 +1048,8 @@ BANK_SE_SHIP
 BANK_SE_SLOT
 BANK_SE_SCRATCH
 BANK_SE_HIROBA
-SEQ_PV001 = 1
+SEQ_NONE = 0
+SEQ_PV001
 SEQ_PV
 SEQ_PV_END
 SEQ_DUMMY = 1000
diff --git a/include/sound.h b/include/sound.h
index 26e5d3e271..b1fd9d391e 100644
--- a/include/sound.h
+++ b/include/sound.h
@@ -5,6 +5,8 @@
 #include <nitro/spi.h>
 #include <nnsys.h>
 
+#include "generated/sdat.h"
+
 #include "sound_system.h"
 
 #define FIELD_BGM_BANK_STATE_IDLE   0
@@ -29,14 +31,76 @@
 
 enum SoundScene {
     SOUND_SCENE_NONE = 0,
-
-    SOUND_SCENE_FIELD = 4,
+    SOUND_SCENE_1,
+    SOUND_SCENE_2,
+    SOUND_SCENE_3,
+    SOUND_SCENE_FIELD,
     SOUND_SCENE_BATTLE,
     SOUND_SCENE_CONTEST,
+    SOUND_SCENE_7,
+    SOUND_SCENE_8,
+    SOUND_SCENE_9,
+    SOUND_SCENE_10,
+    SOUND_SCENE_11,
+    SOUND_SCENE_12,
+    SOUND_SCENE_13,
+    SOUND_SCENE_14,
+    SOUND_SCENE_15,
+    SOUND_SCENE_16,
+    SOUND_SCENE_17,
+    SOUND_SCENE_18,
+    SOUND_SCENE_19,
+    SOUND_SCENE_20,
+    SOUND_SCENE_21,
+    SOUND_SCENE_22,
+    SOUND_SCENE_23,
+    SOUND_SCENE_24,
+    SOUND_SCENE_25,
+    SOUND_SCENE_26,
+    SOUND_SCENE_27,
+    SOUND_SCENE_28,
+    SOUND_SCENE_29,
+    SOUND_SCENE_30,
+    SOUND_SCENE_31,
+    SOUND_SCENE_32,
+    SOUND_SCENE_33,
+    SOUND_SCENE_34,
+    SOUND_SCENE_35,
+    SOUND_SCENE_36,
+    SOUND_SCENE_37,
+    SOUND_SCENE_38,
+    SOUND_SCENE_39,
+    SOUND_SCENE_40,
+    SOUND_SCENE_41,
+    SOUND_SCENE_42,
+    SOUND_SCENE_43,
+    SOUND_SCENE_44,
+    SOUND_SCENE_45,
+    SOUND_SCENE_46,
+    SOUND_SCENE_47,
+    SOUND_SCENE_48,
+    SOUND_SCENE_49,
+    SOUND_SCENE_50,
+    SOUND_SCENE_MAX,
 
-    SOUND_SCENE_MAX = 51,
-
-    SOUND_SCENE_SUB_BAG = 51,
+    SOUND_SCENE_SUB_BAG = SOUND_SCENE_MAX,
+    SOUND_SCENE_SUB_52,
+    SOUND_SCENE_SUB_53,
+    SOUND_SCENE_SUB_54,
+    SOUND_SCENE_SUB_55,
+    SOUND_SCENE_SUB_56,
+    SOUND_SCENE_SUB_57,
+    SOUND_SCENE_SUB_58,
+    SOUND_SCENE_SUB_59,
+    SOUND_SCENE_SUB_60,
+    SOUND_SCENE_SUB_61,
+    SOUND_SCENE_SUB_62,
+    SOUND_SCENE_SUB_63,
+    SOUND_SCENE_SUB_64,
+    SOUND_SCENE_SUB_65,
+    SOUND_SCENE_SUB_66,
+    SOUND_SCENE_SUB_67,
+    SOUND_SCENE_SUB_68,
 };
 
 enum WaveOutChannel {
@@ -75,7 +139,7 @@ void Sound_SetSubScene(u8 scene);
 int Sound_LoadSoundEffectsForScene(u8 scene);
 BOOL Sound_SetSceneAndPlayBGM(u8 scene, u16 bgmID, int unused);
 void Sound_LoadSoundDataForFieldBGM(u16 seqID, u16 currentBankID);
-void sub_02004950(u16 param0);
+void Sound_SwapBGM(u16 bgmID);
 void Sound_LoadHeapStateBGM(void);
 int Sound_GetHeapState(enum SoundHeapState state);
 void Sound_SetBGMPlayerPaused(u8 playerID, BOOL paused); // playerID can be either PLAYER_FIELD or PLAYER_BGM
diff --git a/include/unk_02048614.h b/include/unk_02048614.h
index 3283419f0d..240411d86f 100644
--- a/include/unk_02048614.h
+++ b/include/unk_02048614.h
@@ -13,7 +13,7 @@ BOOL ScrCmd_StartTagBattle(ScriptContext *ctx);
 BOOL ScrCmd_0E7(ScriptContext *param0);
 BOOL ScrCmd_0E8(ScriptContext *param0);
 BOOL ScrCmd_0E9(ScriptContext *param0);
-BOOL ScrCmd_0EA(ScriptContext *param0);
+BOOL ScrCmd_PlayTrainerEncounterBGM(ScriptContext *ctx);
 BOOL ScrCmd_BlackOutFromBattle(ScriptContext *param0);
 BOOL ScrCmd_CheckWonBattle(ScriptContext *ctx);
 BOOL ScrCmd_CheckLostBattle(ScriptContext *ctx);
diff --git a/include/unk_020553DC.h b/include/unk_020553DC.h
index 5d1f0d7a23..457abc706b 100644
--- a/include/unk_020553DC.h
+++ b/include/unk_020553DC.h
@@ -1,18 +1,21 @@
 #ifndef POKEPLATINUM_UNK_020553DC_H
 #define POKEPLATINUM_UNK_020553DC_H
 
+#include "generated/map_headers.h"
+#include "generated/trainers.h"
+
 #include "field/field_system_decl.h"
 
 void sub_020553DC(void);
 void Sound_SetSpecialBGM(FieldSystem *fieldSystem, u16 sdatID);
 u16 Sound_GetSpecialBGM(FieldSystem *fieldSystem);
 void Sound_ClearSpecialBGM(FieldSystem *fieldSystem);
-u16 sub_02055428(FieldSystem *fieldSystem, int param1);
-u16 sub_020554A4(FieldSystem *fieldSystem, int headerID);
+u16 Sound_GetOverrideBGM(FieldSystem *fieldSystem, enum MapHeader mapID);
+u16 Sound_GetBGMByMapID(FieldSystem *fieldSystem, int mapID);
 BOOL sub_02055554(FieldSystem *fieldSystem, u16 param1, int param2);
-u16 sub_0205560C(int param0);
-void Sound_TryFadeInBGM(FieldSystem *fieldSystem, int param1);
-void Sound_PlayMapBGM(FieldSystem *fieldSystem, int param1);
-void sub_020556A0(FieldSystem *fieldSystem, int param1);
+u16 Trainer_GetEncounterBGM(enum TrainerID trainerID);
+void Sound_TryFadeInBGM(FieldSystem *fieldSystem, int mapID);
+void Sound_PlayMapBGM(FieldSystem *fieldSystem, int mapID);
+void sub_020556A0(FieldSystem *fieldSystem, int mapID);
 
 #endif // POKEPLATINUM_UNK_020553DC_H
diff --git a/res/field/scripts/scripts_eterna_city_gym.s b/res/field/scripts/scripts_eterna_city_gym.s
index 1e2eaa301c..166d68b114 100644
--- a/res/field/scripts/scripts_eterna_city_gym.s
+++ b/res/field/scripts/scripts_eterna_city_gym.s
@@ -148,7 +148,7 @@ _01C9:
     LockAll
     FacePlayer
     GoToIfGe 0x40AE, 1, _0211
-    ScrCmd_0EA TRAINER_LASS_CAROLINE
+    PlayTrainerEncounterBGM TRAINER_LASS_CAROLINE
     Message 6
     CloseMessage
     StartTrainerBattle TRAINER_LASS_CAROLINE
@@ -174,7 +174,7 @@ _021C:
     LockAll
     FacePlayer
     GoToIfGe 0x40AE, 2, _0270
-    ScrCmd_0EA TRAINER_AROMA_LADY_JENNA
+    PlayTrainerEncounterBGM TRAINER_AROMA_LADY_JENNA
     SetVar 0x8007, 3
     Call _02DA
     Message 8
@@ -202,7 +202,7 @@ _027B:
     LockAll
     FacePlayer
     GoToIfGe 0x40AE, 3, _02CF
-    ScrCmd_0EA TRAINER_AROMA_LADY_ANGELA
+    PlayTrainerEncounterBGM TRAINER_AROMA_LADY_ANGELA
     SetVar 0x8007, 4
     Call _02DA
     Message 10
diff --git a/res/field/scripts/scripts_pokemon_league_aaron_room.s b/res/field/scripts/scripts_pokemon_league_aaron_room.s
index 5d3140c89d..e523e73615 100644
--- a/res/field/scripts/scripts_pokemon_league_aaron_room.s
+++ b/res/field/scripts/scripts_pokemon_league_aaron_room.s
@@ -12,7 +12,7 @@ _000A:
     LockAll
     FacePlayer
     GoToIfSet FLAG_UNK_0x00B0, _00AC
-    ScrCmd_0EA TRAINER_ELITE_FOUR_AARON
+    PlayTrainerEncounterBGM TRAINER_ELITE_FOUR_AARON
     Message 0
     CloseMessage
     CallIfUnset FLAG_UNK_0x00D6, _007A
diff --git a/res/field/scripts/scripts_pokemon_league_bertha_room.s b/res/field/scripts/scripts_pokemon_league_bertha_room.s
index 5459ef7a97..012bce3b69 100644
--- a/res/field/scripts/scripts_pokemon_league_bertha_room.s
+++ b/res/field/scripts/scripts_pokemon_league_bertha_room.s
@@ -12,7 +12,7 @@ _000A:
     LockAll
     FacePlayer
     GoToIfSet FLAG_UNK_0x00B1, _00AC
-    ScrCmd_0EA TRAINER_ELITE_FOUR_BERTHA
+    PlayTrainerEncounterBGM TRAINER_ELITE_FOUR_BERTHA
     Message 0
     CloseMessage
     CallIfUnset FLAG_UNK_0x00D6, _007A
diff --git a/res/field/scripts/scripts_pokemon_league_champion_room.s b/res/field/scripts/scripts_pokemon_league_champion_room.s
index 25a6d265b3..3e7383f588 100644
--- a/res/field/scripts/scripts_pokemon_league_champion_room.s
+++ b/res/field/scripts/scripts_pokemon_league_champion_room.s
@@ -14,7 +14,7 @@ _000A:
 _000E:
     ApplyMovement LOCALID_PLAYER, _012C
     WaitMovement
-    ScrCmd_0EA TRAINER_CHAMPION_CYNTHIA
+    PlayTrainerEncounterBGM TRAINER_CHAMPION_CYNTHIA
     CallIfUnset FLAG_GAME_COMPLETED, _00EB
     CallIfSet FLAG_GAME_COMPLETED, _00F0
     CloseMessage
diff --git a/res/field/scripts/scripts_pokemon_league_flint_room.s b/res/field/scripts/scripts_pokemon_league_flint_room.s
index 0793142e0f..5856b00042 100644
--- a/res/field/scripts/scripts_pokemon_league_flint_room.s
+++ b/res/field/scripts/scripts_pokemon_league_flint_room.s
@@ -12,7 +12,7 @@ _000A:
     LockAll
     FacePlayer
     GoToIfSet FLAG_UNK_0x00B2, _00D2
-    ScrCmd_0EA TRAINER_ELITE_FOUR_FLINT
+    PlayTrainerEncounterBGM TRAINER_ELITE_FOUR_FLINT
     CallIfUnset FLAG_GAME_COMPLETED, _00F0
     CallIfSet FLAG_GAME_COMPLETED, _0104
     CloseMessage
diff --git a/res/field/scripts/scripts_pokemon_league_lucian_room.s b/res/field/scripts/scripts_pokemon_league_lucian_room.s
index bac4def2c0..8c8274308a 100644
--- a/res/field/scripts/scripts_pokemon_league_lucian_room.s
+++ b/res/field/scripts/scripts_pokemon_league_lucian_room.s
@@ -12,7 +12,7 @@ _000A:
     LockAll
     FacePlayer
     GoToIfSet FLAG_UNK_0x00B3, _00AC
-    ScrCmd_0EA 0x108
+    PlayTrainerEncounterBGM TRAINER_ELITE_FOUR_LUCIAN
     Message 0
     CloseMessage
     CallIfUnset FLAG_UNK_0x00D6, _007A
diff --git a/res/field/scripts/scripts_unk_1114.s b/res/field/scripts/scripts_unk_1114.s
index 3ab790d624..1403dd0ba9 100644
--- a/res/field/scripts/scripts_unk_1114.s
+++ b/res/field/scripts/scripts_unk_1114.s
@@ -953,7 +953,7 @@ _0E86:
     End
 
 _0F01:
-    ScrCmd_0EA 0x8004
+    PlayTrainerEncounterBGM 0x8004
     OpenMessage
     ScrCmd_0E7 0x8000, 0x8001, 0x8002
     ScrCmd_0E6 0x8004, 0x8000
@@ -995,7 +995,7 @@ _0F73:
     End
 
 _0FA3:
-    ScrCmd_0EA 0x8004
+    PlayTrainerEncounterBGM 0x8004
     OpenMessage
     ScrCmd_0E8 0x8000, 0x8001, 0x8002
     ScrCmd_0E6 0x8004, 0x8000
@@ -1060,7 +1060,7 @@ _1054:
 _1083:
     ScrCmd_0B9 0, 0x800C
     SetVar 0x8004, 0x800C
-    ScrCmd_0EA 0x8004
+    PlayTrainerEncounterBGM 0x8004
     ScrCmd_0B6 0
     Call _10DE
     ScrCmd_0B9 0, 0x800C
@@ -1085,7 +1085,7 @@ _10DE:
 _10F3:
     ScrCmd_0B9 0, 0x800C
     SetVar 0x8004, 0x800C
-    ScrCmd_0EA 0x8004
+    PlayTrainerEncounterBGM 0x8004
     ScrCmd_0B6 0
     ScrCmd_0B6 1
     Call _1178
@@ -1121,7 +1121,7 @@ _1178:
 _11A0:
     ScrCmd_0B9 0, 0x800C
     SetVar 0x8004, 0x800C
-    ScrCmd_0EA 0x8004
+    PlayTrainerEncounterBGM 0x8004
     ScrCmd_0B6 0
     Call _123B
     ScrCmd_0B9 0, 0x800C
@@ -1131,7 +1131,7 @@ _11A0:
     CloseMessage
     ScrCmd_0B9 1, 0x800C
     SetVar 0x8005, 0x800C
-    ScrCmd_0EA 0x8005
+    PlayTrainerEncounterBGM 0x8005
     ScrCmd_0B6 1
     Call _1250
     ScrCmd_0B9 1, 0x800C
diff --git a/src/applications/journal_display/journal_controller.c b/src/applications/journal_display/journal_controller.c
index 0d1f9587f6..50fe7211c3 100644
--- a/src/applications/journal_display/journal_controller.c
+++ b/src/applications/journal_display/journal_controller.c
@@ -104,7 +104,7 @@ int JournalController_Init(OverlayManager *ovyManager, int *state)
     GXLayers_TurnBothDispOn();
     sub_02039734();
     GXLayers_EngineAToggleLayers(GX_PLANEMASK_OBJ, 1);
-    Sound_SetSceneAndPlayBGM(67, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_67, SEQ_NONE, 0);
 
     return TRUE;
 }
diff --git a/src/applications/pokemon_summary_screen/main.c b/src/applications/pokemon_summary_screen/main.c
index f43decf821..357c80fddf 100644
--- a/src/applications/pokemon_summary_screen/main.c
+++ b/src/applications/pokemon_summary_screen/main.c
@@ -254,7 +254,7 @@ static int PokemonSummaryScreen_Init(OverlayManager *ovyManager, int *state)
     PokemonSummaryScreen_SetupCamera(summaryScreen);
     SetVBlankCallback(PokemonSummaryScreenVBlank, summaryScreen);
     GXLayers_TurnBothDispOn();
-    Sound_SetSceneAndPlayBGM(61, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_61, SEQ_NONE, 0);
     DrawWifiConnectionIcon();
     NARC_dtor(narc);
 
diff --git a/src/battle/battle_script.c b/src/battle/battle_script.c
index ee456085a2..f57ce92833 100644
--- a/src/battle/battle_script.c
+++ b/src/battle/battle_script.c
@@ -10688,7 +10688,7 @@ static void BattleScript_CatchMonTask(SysTask *param0, void *param1)
                 v2->tmpData[1] = 30;
                 v2->seqNum = 9;
 
-                Sound_PlayBGM(1127);
+                Sound_PlayBGM(SEQ_VICTORY_WILD_POKEMON);
                 BattleSystem_SetRedHPSoundFlag(v2->battleSys, 2);
             }
         }
diff --git a/src/choose_starter/choose_starter_app.c b/src/choose_starter/choose_starter_app.c
index 9ab8062a9a..4115875138 100644
--- a/src/choose_starter/choose_starter_app.c
+++ b/src/choose_starter/choose_starter_app.c
@@ -366,7 +366,7 @@ BOOL ChooseStarter_Init(OverlayManager *param0, int *param1)
     StartCursorMovement(&app->unk_658);
     MakePreviewWindow(&app->unk_6A8, app, HEAP_ID_CHOOSE_STARTER_APP);
 
-    Sound_SetSceneAndPlayBGM(60, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_60, SEQ_NONE, 0);
 
     return TRUE;
 }
diff --git a/src/encounter.c b/src/encounter.c
index 073d2094c8..6001131e48 100644
--- a/src/encounter.c
+++ b/src/encounter.c
@@ -294,8 +294,8 @@ static BOOL FieldTask_WiFiEncounter(FieldTask *task)
 
     switch (*state) {
     case 0:
-        Sound_SetScene(0);
-        Sound_SetSceneAndPlayBGM(5, encounter->battleBGM, 1);
+        Sound_SetScene(SOUND_SCENE_NONE);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_BATTLE, encounter->battleBGM, 1);
         CallBattleTask(task, encounter->dto);
         (*state)++;
         break;
diff --git a/src/field_map_change.c b/src/field_map_change.c
index 6ab058e594..4368c4ac7a 100644
--- a/src/field_map_change.c
+++ b/src/field_map_change.c
@@ -5,7 +5,6 @@
 
 #include "constants/field/map_load.h"
 #include "constants/overworld_weather.h"
-#include "generated/map_headers.h"
 
 #include "struct_decls/struct_0203A790_decl.h"
 #include "struct_defs/map_load_mode.h"
@@ -1229,7 +1228,7 @@ BOOL FieldTask_MapChangeToUnderground(FieldTask *task)
             break;
         }
 
-        Sound_SetScene(0);
+        Sound_SetScene(SOUND_SCENE_NONE);
         Sound_ClearSpecialBGM(fieldSystem);
         FieldTransition_StartMap(task);
         mapChangeUndergroundData->state++;
@@ -1296,7 +1295,7 @@ BOOL FieldTask_MapChangeFromUnderground(FieldTask *task)
             break;
         }
 
-        Sound_SetScene(0);
+        Sound_SetScene(SOUND_SCENE_NONE);
         Sound_ClearSpecialBGM(fieldSystem);
         FieldTransition_StartMap(task);
         mapChangeUndergroundData->state++;
diff --git a/src/field_transition.c b/src/field_transition.c
index 3ee69128ef..f99e60691b 100644
--- a/src/field_transition.c
+++ b/src/field_transition.c
@@ -30,7 +30,7 @@ static BOOL FieldTask_RunEncounterEffect(FieldTask *task)
     switch (data->taskState) {
     case 0:
         EncounterEffect_Start(data->encEffectID, fieldSystem, &data->done);
-        Sound_SetSceneAndPlayBGM(5, data->battleBGM, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_BATTLE, data->battleBGM, 1);
         data->taskState++;
         break;
 
diff --git a/src/overlay005/fieldmap.c b/src/overlay005/fieldmap.c
index d7676c52c3..ec18f37916 100644
--- a/src/overlay005/fieldmap.c
+++ b/src/overlay005/fieldmap.c
@@ -427,7 +427,7 @@ static BOOL FieldMap_ChangeZone(FieldSystem *fieldSystem)
     sub_0206184C(fieldSystem->mapObjMan, mapId, v0, objEventCount, objEventList);
 
     RadarChain_Clear(fieldSystem->chain);
-    sub_02055554(fieldSystem, sub_02055428(fieldSystem, fieldSystem->location->mapId), 1);
+    sub_02055554(fieldSystem, Sound_GetOverrideBGM(fieldSystem, fieldSystem->location->mapId), 1);
     sub_0203A418(fieldSystem);
 
     if (fieldSystem->unk_04->unk_0C != NULL) {
@@ -471,7 +471,7 @@ void ov5_021D12D0(FieldSystem *fieldSystem, u32 param1)
 
     sub_0206184C(fieldSystem->mapObjMan, mapId, param1, objEventCount, objEventList);
 
-    sub_02055554(fieldSystem, sub_02055428(fieldSystem, fieldSystem->location->mapId), 1);
+    sub_02055554(fieldSystem, Sound_GetOverrideBGM(fieldSystem, fieldSystem->location->mapId), 1);
     sub_0203A418(fieldSystem);
 
     if (fieldSystem->unk_04->unk_0C != NULL) {
diff --git a/src/overlay005/ov5_021DFB54.c b/src/overlay005/ov5_021DFB54.c
index f6b38e6aeb..0dab5f0a6c 100644
--- a/src/overlay005/ov5_021DFB54.c
+++ b/src/overlay005/ov5_021DFB54.c
@@ -783,7 +783,7 @@ static BOOL ov5_021E03C8(FieldTask *param0)
 
         sub_0205EC00(v0->playerAvatar, NULL);
         PlayerAvatar_SetPlayerState(v0->playerAvatar, 0x0);
-        sub_02055554(v0->fieldSystem, sub_020554A4(v0->fieldSystem, v0->fieldSystem->location->mapId), 1);
+        sub_02055554(v0->fieldSystem, Sound_GetBGMByMapID(v0->fieldSystem, v0->fieldSystem->location->mapId), 1);
         ov5_021E1134(v0);
         return 1;
     }
diff --git a/src/overlay017/ov17_0223B140.c b/src/overlay017/ov17_0223B140.c
index a284fe4bb4..8f921b119b 100644
--- a/src/overlay017/ov17_0223B140.c
+++ b/src/overlay017/ov17_0223B140.c
@@ -252,7 +252,7 @@ int ov17_0223B140(OverlayManager *param0, int *param1)
     GXLayers_TurnBothDispOn();
     GXLayers_EngineAToggleLayers(GX_PLANEMASK_OBJ, 1);
     GXLayers_EngineBToggleLayers(GX_PLANEMASK_OBJ, 1);
-    Sound_SetSceneAndPlayBGM(6, 1135, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_CONTEST, SEQ_CONTEST_DRESSING_ROOM, 1);
     sub_020959F4(v0->unk_00->unk_155);
     SetVBlankCallback(ov17_0223B6BC, v0);
 
diff --git a/src/overlay017/ov17_0223CB1C.c b/src/overlay017/ov17_0223CB1C.c
index ea4d6e85bf..2ee79c080b 100644
--- a/src/overlay017/ov17_0223CB1C.c
+++ b/src/overlay017/ov17_0223CB1C.c
@@ -213,8 +213,8 @@ int ov17_0223CB1C(OverlayManager *param0, int *param1)
     GXLayers_TurnBothDispOn();
     GXLayers_EngineAToggleLayers(GX_PLANEMASK_OBJ, 1);
     GXLayers_EngineBToggleLayers(GX_PLANEMASK_OBJ, 1);
-    Sound_SetScene(0);
-    Sound_SetSceneAndPlayBGM(6, 1135, 1);
+    Sound_SetScene(SOUND_SCENE_NONE);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_CONTEST, SEQ_CONTEST_DRESSING_ROOM, 1);
     sub_020959F4(v0->unk_00->unk_155);
     SetVBlankCallback(ov17_0223D0C8, v0);
     Sound_PlayEffect(SEQ_SE_DP_DOOR_OPEN);
diff --git a/src/overlay017/ov17_0223DAD0.c b/src/overlay017/ov17_0223DAD0.c
index 39818778e4..a249dc04da 100644
--- a/src/overlay017/ov17_0223DAD0.c
+++ b/src/overlay017/ov17_0223DAD0.c
@@ -319,7 +319,7 @@ int ov17_0223DAD0(OverlayManager *param0, int *param1)
     GXLayers_TurnBothDispOn();
     GXLayers_EngineAToggleLayers(GX_PLANEMASK_OBJ, 1);
     GXLayers_EngineBToggleLayers(GX_PLANEMASK_OBJ, 1);
-    Sound_SetSceneAndPlayBGM(6, 1135, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_CONTEST, SEQ_CONTEST_DRESSING_ROOM, 1);
     sub_020959F4(v0->unk_00->unk_155);
 
     G2_SetBlendBrightness((GX_BLEND_PLANEMASK_BG0 | GX_BLEND_PLANEMASK_BG3 | GX_BLEND_PLANEMASK_BD | GX_BLEND_PLANEMASK_OBJ), -6);
diff --git a/src/overlay017/ov17_0224CFB8.c b/src/overlay017/ov17_0224CFB8.c
index 9febe8a70d..6895efaafa 100644
--- a/src/overlay017/ov17_0224CFB8.c
+++ b/src/overlay017/ov17_0224CFB8.c
@@ -276,7 +276,7 @@ static void ov17_0224D1E8(UnkStruct_ov17_0224F30C *param0, void *param1, const U
 
     SysTask_Start(ov17_0224D240, v1, 30000);
     v0->unk_1078 = 0;
-    Sound_PlayBGM(1135);
+    Sound_PlayBGM(SEQ_CONTEST_DRESSING_ROOM);
 }
 
 static void ov17_0224D240(SysTask *param0, void *param1)
@@ -1488,7 +1488,7 @@ static void ov17_0224E86C(SysTask *param0, void *param1)
         }
         break;
     case 4:
-        Sound_PlayBGM(1135);
+        Sound_PlayBGM(SEQ_CONTEST_DRESSING_ROOM);
         Sound_PlayEffect(SEQ_SE_DP_CON_007);
         v0->unk_4C++;
         break;
diff --git a/src/overlay017/ov17_0224F4D4.c b/src/overlay017/ov17_0224F4D4.c
index b3a8d8635f..6458f94532 100644
--- a/src/overlay017/ov17_0224F4D4.c
+++ b/src/overlay017/ov17_0224F4D4.c
@@ -210,7 +210,7 @@ int ov17_0224F4D4(OverlayManager *param0, int *param1)
     GXLayers_TurnBothDispOn();
     GXLayers_EngineAToggleLayers(GX_PLANEMASK_OBJ, 1);
     GXLayers_EngineBToggleLayers(GX_PLANEMASK_OBJ, 1);
-    Sound_SetSceneAndPlayBGM(6, 1135, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_CONTEST, SEQ_CONTEST_DRESSING_ROOM, 1);
     sub_020959F4(v0->unk_00->unk_155);
     SetVBlankCallback(ov17_0224FA24, v0);
 
diff --git a/src/overlay017/ov17_02251D6C.c b/src/overlay017/ov17_02251D6C.c
index 121fe81ab1..9c399eb76d 100644
--- a/src/overlay017/ov17_02251D6C.c
+++ b/src/overlay017/ov17_02251D6C.c
@@ -481,7 +481,7 @@ static void ov17_022523AC(SysTask *param0, void *param1)
         break;
     case 2:
         StartScreenTransition(0, 0, 0, 0x0, 6, 1, HEAP_ID_24);
-        Sound_StopBGM(1135, 30);
+        Sound_StopBGM(SEQ_CONTEST_DRESSING_ROOM, 30);
         v0->unk_10++;
         break;
     case 3:
@@ -522,7 +522,7 @@ static void ov17_022523AC(SysTask *param0, void *param1)
         break;
     case 6:
         if (IsScreenTransitionDone() == 1) {
-            Sound_PlayBGM(1181);
+            Sound_PlayBGM(SEQ_CO_KEKKA);
             v0->unk_10++;
         }
         break;
@@ -629,7 +629,7 @@ static void ov17_0225266C(SysTask *param0, void *param1)
     case 0:
         ov17_02250FE4(v0->unk_00);
         ov17_02251598(v0->unk_00, 0, &v0->unk_12);
-        Sound_PlayBGM(1182);
+        Sound_PlayBGM(SEQ_CO_FANFA);
         Sound_PlayEffect(SEQ_SE_DP_CON_007);
         v0->unk_10++;
         break;
@@ -822,7 +822,7 @@ static void ov17_022529C8(SysTask *param0, void *param1)
     switch (v0->unk_10) {
     case 0:
         BrightnessController_StartTransition(90, 16, 0, (GX_BLEND_PLANEMASK_BG0 | GX_BLEND_PLANEMASK_BG1 | GX_BLEND_PLANEMASK_BG2 | GX_BLEND_PLANEMASK_BG3 | GX_BLEND_PLANEMASK_OBJ | GX_BLEND_PLANEMASK_BD), BRIGHTNESS_BOTH_SCREENS);
-        Sound_StopBGM(1182, 90);
+        Sound_StopBGM(SEQ_CO_FANFA, 90);
         v0->unk_10++;
         break;
     case 1:
diff --git a/src/overlay020/ov20_021D0D80.c b/src/overlay020/ov20_021D0D80.c
index f946be05b0..1ceb27f0b9 100644
--- a/src/overlay020/ov20_021D0D80.c
+++ b/src/overlay020/ov20_021D0D80.c
@@ -125,7 +125,7 @@ int ov20_021D0D80(OverlayManager *param0, int *param1)
 
     switch (*param1) {
     case 0:
-        Sound_SetSceneAndPlayBGM(62, 0, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_62, SEQ_NONE, 0);
         Heap_Create(HEAP_ID_APPLICATION, HEAP_ID_34, 32768);
         Heap_Create(HEAP_ID_APPLICATION, HEAP_ID_35, 163840);
         v0 = ov20_021D0EC8(param0);
diff --git a/src/overlay021/pokedex_main.c b/src/overlay021/pokedex_main.c
index 0a747c0ddf..a1ac05ea65 100644
--- a/src/overlay021/pokedex_main.c
+++ b/src/overlay021/pokedex_main.c
@@ -90,7 +90,7 @@ int PokedexMain_Init(OverlayManager *overlayMan, int *state)
 {
     PokedexOverlayArgs pokedexOverlayArgs;
 
-    Sound_SetSceneAndPlayBGM(54, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_54, SEQ_NONE, 0);
     Heap_Create(HEAP_ID_APPLICATION, HEAP_ID_POKEDEX, 0x40000);
 
     PokedexApp **appPtr = OverlayManager_NewData(overlayMan, sizeof(PokedexApp **), HEAP_ID_POKEDEX);
diff --git a/src/overlay022/ov22_02255D44.c b/src/overlay022/ov22_02255D44.c
index 1519f23a91..fb467648a6 100644
--- a/src/overlay022/ov22_02255D44.c
+++ b/src/overlay022/ov22_02255D44.c
@@ -229,7 +229,7 @@ int ov22_02255D44(OverlayManager *param0, int *param1)
     v0->unk_718 = Window_New(HEAP_ID_13, 1);
     v0->unk_70C = 0;
 
-    Sound_SetSceneAndPlayBGM(53, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_53, SEQ_NONE, 0);
 
     return 1;
 }
@@ -554,7 +554,7 @@ int ov22_022562EC(OverlayManager *param0, int *param1)
         break;
     case 12:
         if (IsScreenTransitionDone()) {
-            Sound_SetSceneAndPlayBGM(7, 1169, 0);
+            Sound_SetSceneAndPlayBGM(SOUND_SCENE_7, SEQ_CO_DRESS, 0);
             (*param1)++;
         }
         break;
diff --git a/src/overlay023/ov23_0223E140.c b/src/overlay023/ov23_0223E140.c
index 1258cb0e62..787bcdb45c 100644
--- a/src/overlay023/ov23_0223E140.c
+++ b/src/overlay023/ov23_0223E140.c
@@ -1292,7 +1292,7 @@ static void ov23_0223EE80(UnkStruct_ov23_0223EE80 *param0)
     void *v4;
     int v5;
 
-    Sound_SetSceneAndPlayBGM(58, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_58, SEQ_NONE, 0);
     ov23_0223E140();
 
     GXLayers_EngineAToggleLayers(GX_PLANEMASK_BG0, 0);
diff --git a/src/overlay023/ov23_0224A1D0.c b/src/overlay023/ov23_0224A1D0.c
index fcd0971645..48cda56bcc 100644
--- a/src/overlay023/ov23_0224A1D0.c
+++ b/src/overlay023/ov23_0224A1D0.c
@@ -385,7 +385,7 @@ static void ov23_0224A6E4(UnkStruct_ov23_0224A570 *param0, BOOL param1, SecretBa
         ov23_02253F40(ov23_022421AC(), 11, 1, ov23_0224A5B0);
     }
 
-    Sound_FadeOutAndPlayBGM(4, 1060, 60, 0, 0xff, NULL);
+    Sound_FadeOutAndPlayBGM(4, SEQ_TANKOU, 60, 0, 0xff, NULL);
     Sound_PlayEffect(SEQ_SE_DP_CARD10);
 }
 
@@ -406,7 +406,7 @@ void ov23_0224A77C(int param0, int param1, void *param2, void *param3)
             if (v1->unk_01 == CommSys_CurNetId()) {
                 sub_020594FC();
                 ov23_02253F40(ov23_022421AC(), 2, 1, ov23_0224A308);
-                Sound_FadeOutAndPlayBGM(4, 1060, 60, 0, 0xff, NULL);
+                Sound_FadeOutAndPlayBGM(4, SEQ_TANKOU, 60, 0, 0xff, NULL);
             }
         }
         break;
@@ -443,7 +443,7 @@ void ov23_0224A77C(int param0, int param1, void *param2, void *param3)
                 sub_02059464(0x1);
                 ov23_02254068(ov23_022421AC(), CommInfo_TrainerInfo(v1->unk_02));
                 ov23_02253F40(ov23_022421AC(), 12, 1, ov23_0224A328);
-                Sound_PlayBGM(1061);
+                Sound_PlayBGM(SEQ_HATANIGE);
                 Sound_PlayEffect(SEQ_SE_DP_UG_021);
             } else if (v1->unk_02 == CommSys_CurNetId()) {
                 ov23_0224A6E4(v1, 1, v4);
@@ -492,7 +492,7 @@ void ov23_0224A77C(int param0, int param1, void *param2, void *param3)
                 CommSys_SendDataFixedSize(96, &v6);
             }
 
-            Sound_FadeOutAndPlayBGM(4, 1060, 60, 0, 0xff, NULL);
+            Sound_FadeOutAndPlayBGM(4, SEQ_TANKOU, 60, 0, 0xff, NULL);
         }
 
         if (commPlayerMan->unk_290[v1->unk_01]) {
diff --git a/src/overlay023/ov23_0225128C.c b/src/overlay023/ov23_0225128C.c
index 4ab703f0b1..f805469a8f 100644
--- a/src/overlay023/ov23_0225128C.c
+++ b/src/overlay023/ov23_0225128C.c
@@ -941,7 +941,7 @@ void ov23_02252178(int param0, int param1, void *param2, void *param3)
     if (CommSys_CurNetId() == v1->unk_00) {
         ov23_02254068(ov23_022421AC(), CommInfo_TrainerInfo(v1->unk_01));
         ov23_02253F40(ov23_022421AC(), 8, 1, ov23_022513A4);
-        Sound_PlayBGM(1061);
+        Sound_PlayBGM(SEQ_HATANIGE);
     }
 
     ov23_0224AEC4(v1->unk_00, v1->unk_01);
diff --git a/src/overlay058/ov58_021D0D80.c b/src/overlay058/ov58_021D0D80.c
index 807cfca091..8ec1df6e08 100644
--- a/src/overlay058/ov58_021D0D80.c
+++ b/src/overlay058/ov58_021D0D80.c
@@ -203,7 +203,7 @@ int ov58_021D0D80(OverlayManager *param0, int *param1)
         ov58_021D16D8(v0);
         ov58_021D18AC(v0, param0);
 
-        Sound_SetSceneAndPlayBGM(52, 0, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_52, SEQ_NONE, 0);
 
         GX_SetDispSelect(GX_DISP_SELECT_SUB_MAIN);
 
diff --git a/src/overlay059/ov59_021D0D80.c b/src/overlay059/ov59_021D0D80.c
index 4aab13ca42..879333c222 100644
--- a/src/overlay059/ov59_021D0D80.c
+++ b/src/overlay059/ov59_021D0D80.c
@@ -204,7 +204,7 @@ int ov59_021D0D80(OverlayManager *param0, int *param1)
         ov59_021D1598(v0);
         ov59_021D16A0(v0, param0);
 
-        Sound_SetSceneAndPlayBGM(52, 0, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_52, SEQ_NONE, 0);
         sub_020961E8(v0);
         sub_02037878();
         sub_02037B58(3);
diff --git a/src/overlay065/ov65_0222DCE0.c b/src/overlay065/ov65_0222DCE0.c
index 88e9b5b1c1..13c3c8cf0d 100644
--- a/src/overlay065/ov65_0222DCE0.c
+++ b/src/overlay065/ov65_0222DCE0.c
@@ -1616,7 +1616,7 @@ static int ov65_0222F010(UnkStruct_ov65_0222EBE0 *param0, int param1)
             param0->unk_3A8 = 61;
         }
     } else {
-        Sound_SetSceneAndPlayBGM(11, 1175, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_11, SEQ_WIFILOBBY, 1);
         ov65_0222EE98(param0);
 
         if (!DWC_CheckHasProfile(sub_0202AD28(param0->unk_00))) {
@@ -3797,19 +3797,19 @@ static u32 ov65_022319B8(UnkStruct_ov65_0222EBE0 *param0)
 
 static void ov65_02231A0C(void)
 {
-    u32 v0;
+    u32 bgmID;
 
     ov4_021D2584(0);
 
     if (ov65_02231A54() == 0) {
-        if (IsNight() == 0) {
-            v0 = 1085;
+        if (IsNight() == FALSE) {
+            bgmID = SEQ_PC_01;
         } else {
-            v0 = 1086;
+            bgmID = SEQ_PC_02;
         }
 
-        Sound_SetScene(0);
-        Sound_SetSceneAndPlayBGM(11, v0, 1);
+        Sound_SetScene(SOUND_SCENE_NONE);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_11, bgmID, 1);
     } else {
         Sound_SetInitialVolumeForSequence(Sound_GetCurrentBGM(), 120);
     }
diff --git a/src/overlay066/ov66_0222DDF0.c b/src/overlay066/ov66_0222DDF0.c
index f1f2eae557..92349f8576 100644
--- a/src/overlay066/ov66_0222DDF0.c
+++ b/src/overlay066/ov66_0222DDF0.c
@@ -771,10 +771,10 @@ void ov66_0222E2C4(UnkStruct_ov66_0222DFF8 *param0, BOOL param1)
 void ov66_0222E2CC(const UnkStruct_ov66_0222DFF8 *param0)
 {
     if ((param0->unk_1FC.unk_00_4 == 1) && (param0->unk_1FC.unk_0A <= 0)) {
-        Sound_SetSceneAndPlayBGM(21, 1213, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_21, SEQ_PL_WIFIPARADE, 0);
         ov66_0222FBAC(&param0->unk_1FC);
     } else {
-        Sound_SetSceneAndPlayBGM(21, 1212, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_21, SEQ_PL_WIFIUNION, 0);
         ov66_0222FBAC(&param0->unk_1FC);
     }
 }
@@ -2453,7 +2453,7 @@ static void ov66_0222FA88(UnkStruct_ov66_0222FB64 *param0, UnkStruct_ov66_0222FA
         ov66_022302D0(param2);
 
         if (param0->unk_0C == 0) {
-            Sound_PlayBGM(1213);
+            Sound_PlayBGM(SEQ_PL_WIFIPARADE);
         }
 
         param0->unk_00_4 = 1;
diff --git a/src/overlay067/ov67_0225C700.c b/src/overlay067/ov67_0225C700.c
index ea1882cb6a..f0b7d4001e 100644
--- a/src/overlay067/ov67_0225C700.c
+++ b/src/overlay067/ov67_0225C700.c
@@ -175,7 +175,7 @@ int ov67_0225C700(OverlayManager *param0, int *param1)
     v1 = OverlayManager_Args(param0);
 
     v0->unk_00 = v1->unk_00;
-    Sound_SetSceneAndPlayBGM(11, 1175, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_11, SEQ_WIFILOBBY, 0);
     v1->unk_10 = 0;
 
     ov67_0225CE30(v0, 112);
diff --git a/src/overlay071/ov71_0223B140.c b/src/overlay071/ov71_0223B140.c
index c73609624f..3e7c752588 100644
--- a/src/overlay071/ov71_0223B140.c
+++ b/src/overlay071/ov71_0223B140.c
@@ -167,7 +167,7 @@ int ov71_0223B140(OverlayManager *param0, int *param1)
 
     sub_0201E3D8();
     sub_0201E450(4);
-    Sound_SetSceneAndPlayBGM(56, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_56, SEQ_NONE, 0);
     ov71_0223D324(&v0->unk_3354);
     Sound_PlayEffect(SEQ_SE_DP_CARD3);
     ov71_0223CF0C(&v0->unk_30E4, v1);
diff --git a/src/overlay072/ov72_0223D7A0.c b/src/overlay072/ov72_0223D7A0.c
index e5e66d6689..e27921772d 100644
--- a/src/overlay072/ov72_0223D7A0.c
+++ b/src/overlay072/ov72_0223D7A0.c
@@ -156,7 +156,7 @@ int ov72_0223D7A0(OverlayManager *param0, int *param1)
         ov72_0223DF58(v0);
         ov72_0223E0A0(v0, param0);
 
-        Sound_SetSceneAndPlayBGM(56, 0, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_56, SEQ_NONE, 0);
         GX_SetDispSelect(GX_DISP_SELECT_SUB_MAIN);
         NARC_dtor(v1);
         (*param1)++;
diff --git a/src/overlay073/ov73_021D0D80.c b/src/overlay073/ov73_021D0D80.c
index 3e5ee67395..86be57989b 100644
--- a/src/overlay073/ov73_021D0D80.c
+++ b/src/overlay073/ov73_021D0D80.c
@@ -1416,8 +1416,8 @@ static BOOL ov73_021D2318(UnkStruct_ov73_021D1058 *param0)
 
     switch (param0->unk_0C) {
     case 0:
-        Sound_SetSceneAndPlayBGM(2, 1029, 1);
-        Sound_StopBGM(1029, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_2, SEQ_OPENING, 1);
+        Sound_StopBGM(SEQ_OPENING, 0);
         Bg_ToggleLayer(0, 1);
         Bg_ToggleLayer(7, 1);
         StartScreenTransition(0, 1, 1, 0x0, 6, 1, param0->heapId);
@@ -1439,7 +1439,7 @@ static BOOL ov73_021D2318(UnkStruct_ov73_021D1058 *param0)
         }
         break;
     case 3:
-        Sound_PlayBGM(1029);
+        Sound_PlayBGM(SEQ_OPENING);
         param0->unk_89 = 1;
         param0->unk_8A = 0;
         ov73_021D1A20(param0);
diff --git a/src/overlay073/ov73_021D3250.c b/src/overlay073/ov73_021D3250.c
index d5c8b06278..58fec89397 100644
--- a/src/overlay073/ov73_021D3250.c
+++ b/src/overlay073/ov73_021D3250.c
@@ -96,8 +96,8 @@ int ov73_021D3280 (OverlayManager * param0, int * param1)
         if (v0->unk_24) {
             v0->unk_24--;
         } else {
-            Sound_SetFieldBGM(1030);
-            Sound_SetSceneAndPlayBGM(4, 1030, 1);
+            Sound_SetFieldBGM(SEQ_TV_HOUSOU);
+            Sound_SetSceneAndPlayBGM(SOUND_SCENE_FIELD, SEQ_TV_HOUSOU, 1);
 
             v0->unk_24 = 3 * 30;
             *param1 = 2;
diff --git a/src/overlay077/ov77_021D0D80.c b/src/overlay077/ov77_021D0D80.c
index 6685e297ae..f31eaf0f49 100644
--- a/src/overlay077/ov77_021D0D80.c
+++ b/src/overlay077/ov77_021D0D80.c
@@ -224,8 +224,8 @@ static int ov77_021D0E3C(OverlayManager *param0, int *param1)
         }
         break;
     case 2:
-        Sound_SetScene(0);
-        Sound_SetSceneAndPlayBGM(1, 1173, 1);
+        Sound_SetScene(SOUND_SCENE_NONE);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_1, SEQ_TITLE01, 1);
         *param1 = 3;
         break;
     case 3:
@@ -278,7 +278,7 @@ static int ov77_021D0E3C(OverlayManager *param0, int *param1)
         }
 
         if ((Sound_IsPokemonCryPlaying() == 0) && (IsScreenTransitionDone() == 1) && (v0->unk_4FC >= 10)) {
-            Sound_StopBGM(1173, 0);
+            Sound_StopBGM(SEQ_TITLE01, 0);
 
             GXLayers_EngineAToggleLayers(GX_PLANEMASK_BG0, 0);
             GXLayers_EngineAToggleLayers(GX_PLANEMASK_BG1, 0);
@@ -297,7 +297,7 @@ static int ov77_021D0E3C(OverlayManager *param0, int *param1)
         ov77_021D20E4(&v0->unk_238, v0->unk_04, v0->heapID);
 
         if (Sound_IsFadeActive() == FALSE) {
-            Sound_StopBGM(1173, 0);
+            Sound_StopBGM(SEQ_TITLE01, 0);
             StartScreenTransition(0, 0, 0, 0x7fff, 6, 1, v0->heapID);
             *param1 = 6;
         }
@@ -337,7 +337,7 @@ static int ov77_021D10FC(OverlayManager *param0, int *param1)
         EnqueueApplication(0xffffffff, &Unk_020F8A48);
         break;
     case 3:
-        Sound_SetScene(0);
+        Sound_SetScene(SOUND_SCENE_NONE);
         EnqueueApplication(FS_OVERLAY_ID(overlay77), &gOpeningCutsceneOverlayTemplate);
         break;
     }
diff --git a/src/overlay077/ov77_021D25B0.c b/src/overlay077/ov77_021D25B0.c
index 8e2b967eb5..7a37f00483 100644
--- a/src/overlay077/ov77_021D25B0.c
+++ b/src/overlay077/ov77_021D25B0.c
@@ -1111,7 +1111,7 @@ static BOOL ov77_021D30D0(UnkStruct_ov77_021D2F38 *param0, const int param1)
         param0->unk_06 = 0;
         param0->unk_08 = 0;
         param0->unk_10 = SysTask_Start(ov77_021D32A4, param0, 0);
-        Sound_SetSceneAndPlayBGM(1, 1172, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_1, SEQ_TITLE00, 1);
         (*v0)++;
         break;
     case 1:
diff --git a/src/overlay080/ov80_021D0D80.c b/src/overlay080/ov80_021D0D80.c
index dccfb28410..03cc2bbdb4 100644
--- a/src/overlay080/ov80_021D0D80.c
+++ b/src/overlay080/ov80_021D0D80.c
@@ -113,7 +113,7 @@ int ov80_021D0D80(OverlayManager *param0, int *param1)
     v0->unk_02 = v1->unk_13C;
     v0->heapID = HEAP_ID_17;
 
-    Sound_SetSceneAndPlayBGM(55, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_55, SEQ_NONE, 0);
 
     return 1;
 }
diff --git a/src/overlay083/ov83_0223B5A0.c b/src/overlay083/ov83_0223B5A0.c
index 2c98a91489..6aa93ed412 100644
--- a/src/overlay083/ov83_0223B5A0.c
+++ b/src/overlay083/ov83_0223B5A0.c
@@ -134,7 +134,7 @@ int ov83_0223B5B0(OverlayManager *param0, int *param1)
 
     SetVBlankCallback(ov83_0223B5A0, v0);
     DisableHBlank();
-    Sound_SetSceneAndPlayBGM(12, 1183, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_12, SEQ_KINOMI1, 1);
 
     return 1;
 }
diff --git a/src/overlay084/ov84_0223B5A0.c b/src/overlay084/ov84_0223B5A0.c
index 3cc7971c4c..b8b5c32002 100644
--- a/src/overlay084/ov84_0223B5A0.c
+++ b/src/overlay084/ov84_0223B5A0.c
@@ -442,7 +442,7 @@ int ov84_0223B5A0(OverlayManager *param0, int *param1)
     }
 
     SetVBlankCallback(ov84_0223BA14, v0);
-    Sound_SetSceneAndPlayBGM(51, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_BAG, SEQ_NONE, 0);
     DrawWifiConnectionIcon();
 
     return 1;
diff --git a/src/overlay086/ov86_0223B140.c b/src/overlay086/ov86_0223B140.c
index b0098203ff..825d3e665d 100644
--- a/src/overlay086/ov86_0223B140.c
+++ b/src/overlay086/ov86_0223B140.c
@@ -334,7 +334,7 @@ int ov86_0223B140(OverlayManager *param0, int *param1)
     v0->unk_00 = 0;
     v0->unk_1C28 = ov86_0223B744(ov86_0223B6CC, v0, 6);
 
-    Sound_SetSceneAndPlayBGM(8, 1171, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_8, SEQ_BLD_EV_DENDO2, 1);
 
     return 1;
 }
diff --git a/src/overlay088/ov88_0223B140.c b/src/overlay088/ov88_0223B140.c
index c3e1ed02d6..d51cc9b31f 100644
--- a/src/overlay088/ov88_0223B140.c
+++ b/src/overlay088/ov88_0223B140.c
@@ -318,11 +318,11 @@ int ov88_0223B140(OverlayManager *param0, int *param1)
     sub_02038A1C(26, v0->unk_174);
     sub_02039734();
 
-    if (IsNight() == 0) {
-        Sound_SetSceneAndPlayBGM(4, 1085, 1);
+    if (IsNight() == FALSE) {
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_FIELD, SEQ_PC_01, 1);
         Sound_AdjustVolumeForVoiceChat(1085);
     } else {
-        Sound_SetSceneAndPlayBGM(4, 1086, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_FIELD, SEQ_PC_02, 1);
         Sound_AdjustVolumeForVoiceChat(1086);
     }
 
diff --git a/src/overlay094/ov94_0223BCB0.c b/src/overlay094/ov94_0223BCB0.c
index 68e6ea21eb..a0ef772b35 100644
--- a/src/overlay094/ov94_0223BCB0.c
+++ b/src/overlay094/ov94_0223BCB0.c
@@ -127,7 +127,7 @@ int ov94_0223BCB0(OverlayManager *param0, int *param1)
         ov94_0223C03C(v0, param0);
         ov94_0223C4E0(v0);
 
-        Sound_SetSceneAndPlayBGM(11, 1175, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_11, SEQ_WIFILOBBY, 1);
 
         v0->unk_4C = Heap_AllocFromHeap(HEAP_ID_62, 0x20000 + 32);
         v0->unk_50 = NNS_FndCreateExpHeap((void *)(((u32)v0->unk_4C + 31) / 32 * 32), 0x20000);
diff --git a/src/overlay094/ov94_0223C610.c b/src/overlay094/ov94_0223C610.c
index 4931e47bdf..1b1aac4e49 100644
--- a/src/overlay094/ov94_0223C610.c
+++ b/src/overlay094/ov94_0223C610.c
@@ -83,7 +83,7 @@ int ov94_0223C610(UnkStruct_ov94_0223FD4C *param0, int param1)
     ov94_02245934(param0);
     ov94_0223CF3C(param0);
 
-    Sound_SetSceneAndPlayBGM(23, 1097, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_23, SEQ_BLD_BLD_GTC, 1);
 
     if (param0->unk_34 == 0) {
         ov94_0223C85C(param0);
diff --git a/src/overlay095/ov95_02246C20.c b/src/overlay095/ov95_02246C20.c
index 5c489a7e01..746421eb13 100644
--- a/src/overlay095/ov95_02246C20.c
+++ b/src/overlay095/ov95_02246C20.c
@@ -131,7 +131,7 @@ int ov95_02246C20(OverlayManager *param0, int *param1)
         Heap_Create(HEAP_ID_APPLICATION, HEAP_ID_57, 98304);
         Heap_Create(HEAP_ID_APPLICATION, HEAP_ID_58, 98304);
         ov95_02247688();
-        Sound_SetSceneAndPlayBGM(3, 1170, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_3, SEQ_KOUKAN, 1);
 
         v0 = OverlayManager_NewData(param0, sizeof(UnkStruct_ov95_02247628), HEAP_ID_57);
 
diff --git a/src/overlay096/ov96_0223B6A0.c b/src/overlay096/ov96_0223B6A0.c
index e2d5658d81..b0754e9e42 100644
--- a/src/overlay096/ov96_0223B6A0.c
+++ b/src/overlay096/ov96_0223B6A0.c
@@ -96,12 +96,12 @@ int ov96_0223B6A0(OverlayManager *param0, int *param1)
         SetAutorepeat(4, 8);
         ov96_0223B980(v0, param0);
         ov96_0223BC64(v0);
-        Sound_SetSceneAndPlayBGM(52, 0, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_52, SEQ_NONE, 0);
 
         v0->unk_24 = Heap_AllocFromHeap(HEAP_ID_68, 0x20000 + 32);
         v0->unk_28 = NNS_FndCreateExpHeap((void *)(((u32)v0->unk_24 + 31) / 32 * 32), 0x20000);
 
-        Sound_SetSceneAndPlayBGM(11, 1175, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_11, SEQ_WIFILOBBY, 1);
 
         *param1 = 1;
         break;
diff --git a/src/overlay097/gba_migrator.c b/src/overlay097/gba_migrator.c
index 59737de3e4..549a277885 100644
--- a/src/overlay097/gba_migrator.c
+++ b/src/overlay097/gba_migrator.c
@@ -1837,7 +1837,7 @@ static int GBAMigrator_Init(OverlayManager *param0, int *state)
     migrator->unk_12668 = Strbuf_Init(256, HEAP_ID_MIGRATE_FROM_GBA);
     migrator->unk_1266C = Strbuf_Init(256, HEAP_ID_MIGRATE_FROM_GBA);
 
-    Sound_SetSceneAndPlayBGM(9, 1174, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_9, SEQ_PRESENT, 1);
 
     if (OS_IsTickAvailable() == 0) {
         OS_InitTick();
diff --git a/src/overlay097/ov97_0222AE60.c b/src/overlay097/ov97_0222AE60.c
index 2beb019477..c55fff52be 100644
--- a/src/overlay097/ov97_0222AE60.c
+++ b/src/overlay097/ov97_0222AE60.c
@@ -995,7 +995,7 @@ static int ov97_0222BD70(OverlayManager *param0, int *param1)
     }
 
     Sound_ConfigureBGMChannelsAndReverb(SOUND_CHANNEL_CONFIG_DEFAULT);
-    Sound_SetScene(0);
+    Sound_SetScene(SOUND_SCENE_NONE);
 
     return 1;
 }
diff --git a/src/overlay097/ov97_0222C174.c b/src/overlay097/ov97_0222C174.c
index d61c8b64db..0226a1a770 100644
--- a/src/overlay097/ov97_0222C174.c
+++ b/src/overlay097/ov97_0222C174.c
@@ -688,7 +688,7 @@ static int ov97_0222C6F8(OverlayManager *param0, int *param1)
     v0->unk_158 = 0;
 
     Heap_Create(HEAP_ID_SYSTEM, HEAP_ID_91, 0x300);
-    Sound_SetSceneAndPlayBGM(9, 1174, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_9, SEQ_PRESENT, 1);
 
     return 1;
 }
diff --git a/src/overlay097/ov97_0222D30C.c b/src/overlay097/ov97_0222D30C.c
index ee2f1f1e6f..51eb3efa37 100644
--- a/src/overlay097/ov97_0222D30C.c
+++ b/src/overlay097/ov97_0222D30C.c
@@ -1090,7 +1090,7 @@ static int ov97_0222E2DC(OverlayManager *param0, int *param1)
     sub_0200F344(0, 0x0);
     sub_0200F344(1, 0x0);
 
-    Sound_SetSceneAndPlayBGM(10, 1174, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_10, SEQ_PRESENT, 1);
     ov97_02237520(86);
 
     if (ov97_02237624()) {
diff --git a/src/overlay098/ov98_02246C20.c b/src/overlay098/ov98_02246C20.c
index e46f11928a..78f1d8e019 100644
--- a/src/overlay098/ov98_02246C20.c
+++ b/src/overlay098/ov98_02246C20.c
@@ -107,7 +107,7 @@ int ov98_02246C20(OverlayManager *param0, int *param1)
     v0->unk_08 = SaveData_GetOptions(v0->saveData);
     v0->unk_114 = Strbuf_Init(100, HEAP_ID_108);
     v0->unk_118 = Strbuf_Init(100, HEAP_ID_108);
-    Sound_SetSceneAndPlayBGM(17, 1175, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_17, SEQ_WIFILOBBY, 1);
     v0->unk_8C = 0;
 
     return 1;
diff --git a/src/overlay099/ov99_021D0D80.c b/src/overlay099/ov99_021D0D80.c
index 1388595ff5..12dec4b9df 100644
--- a/src/overlay099/ov99_021D0D80.c
+++ b/src/overlay099/ov99_021D0D80.c
@@ -167,7 +167,7 @@ int ov99_021D0D80(OverlayManager *param0, int *param1)
     v0->unk_14 = SysTask_Start(ov99_021D1244, v0, 60000);
 
     SetVBlankCallback(ov99_021D1350, v0);
-    Sound_SetSceneAndPlayBGM(14, 1186, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_14, SEQ_BLD_ENDING, 1);
 
     BrightnessController_SetScreenBrightness(-16, (GX_BLEND_PLANEMASK_BG0 | GX_BLEND_PLANEMASK_BG2 | GX_BLEND_PLANEMASK_BG3 | GX_BLEND_PLANEMASK_OBJ | GX_BLEND_PLANEMASK_OBJ | GX_BLEND_PLANEMASK_BD), BRIGHTNESS_BOTH_SCREENS);
     sub_0200F44C(0, 0);
diff --git a/src/overlay100/ov100_021D13E4.c b/src/overlay100/ov100_021D13E4.c
index 87796ccfa1..b1ddbe5d44 100644
--- a/src/overlay100/ov100_021D13E4.c
+++ b/src/overlay100/ov100_021D13E4.c
@@ -110,8 +110,8 @@ BOOL ov100_021D14A8(void *param0)
             break;
         }
 
-        Sound_SetSceneAndPlayBGM(18, 1065, 0);
-        Sound_SetSceneAndPlayBGM(63, 0, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_18, SEQ_D_RYAYHY, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_63, SEQ_NONE, 0);
         v0->unk_00 = 2;
         break;
     case 2:
diff --git a/src/overlay100/ov100_021D1C44.c b/src/overlay100/ov100_021D1C44.c
index 96da53ca5d..cb1aa9021e 100644
--- a/src/overlay100/ov100_021D1C44.c
+++ b/src/overlay100/ov100_021D1C44.c
@@ -455,8 +455,8 @@ BOOL ov100_021D2428(void *param0)
     case 11:
         v0->unk_1A0.unk_10DC[0].unk_160 = 1;
         Easy3DObject_SetVisibility(&v0->unk_1A0.unk_10DC[0].unk_00, 1);
-        Sound_PlayBGM(1214);
-        Sound_SetSceneAndPlayBGM(63, 0, 0);
+        Sound_PlayBGM(SEQ_PL_EV_GIRA);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_63, SEQ_NONE, 0);
         v0->unk_00++;
         break;
     case 12:
@@ -586,7 +586,7 @@ BOOL ov100_021D2428(void *param0)
             ov100_021D4788(v0->unk_1EBC);
         }
 
-        Sound_PlayBGM(1215);
+        Sound_PlayBGM(SEQ_PL_EV_GIRA2);
 
         v0->unk_1A0.unk_934[4].unk_160 = 1;
 
@@ -631,9 +631,9 @@ BOOL ov100_021D2428(void *param0)
             G2S_SetBlendBrightness((GX_BLEND_PLANEMASK_BG0 | GX_BLEND_PLANEMASK_BG1 | GX_BLEND_PLANEMASK_OBJ | GX_BLEND_PLANEMASK_BD), v0->unk_1EBC->unk_50.unk_03);
 
             {
-                u16 v2 = Sound_GetCurrentBGM();
+                u16 currentBGM = Sound_GetCurrentBGM();
 
-                Sound_StopBGM(v2, 0);
+                Sound_StopBGM(currentBGM, 0);
             }
 
             ov100_021D4788(v0->unk_1EBC);
diff --git a/src/overlay100/ov100_021D2F0C.c b/src/overlay100/ov100_021D2F0C.c
index 977245524e..d1f37b7038 100644
--- a/src/overlay100/ov100_021D2F0C.c
+++ b/src/overlay100/ov100_021D2F0C.c
@@ -277,7 +277,7 @@ void *ov100_021D3620(UnkStruct_ov100_021D4DD8 *param0)
     v0->unk_1D28->unk_44.z = FX32_CONST(34);
 
     ov100_021D3504(v0->unk_1D28->camera, &v0->unk_1D28->unk_44);
-    Sound_SetSceneAndPlayBGM(63, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_63, SEQ_NONE, 0);
 
     return v0;
 }
diff --git a/src/overlay101/ov101_021D0D80.c b/src/overlay101/ov101_021D0D80.c
index 7cb8e20e9b..237a922631 100644
--- a/src/overlay101/ov101_021D0D80.c
+++ b/src/overlay101/ov101_021D0D80.c
@@ -103,7 +103,7 @@ int ov101_021D0D80(OverlayManager *param0, int *param1)
     ov101_021D59AC(v1);
     ov101_021D5AF0(v1);
     ov101_021D5C28(v1);
-    Sound_SetSceneAndPlayBGM(66, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_66, SEQ_NONE, 0);
     ov101_021D18C0(v1);
     StartScreenTransition(0, 1, 1, 0x0, 8, 1, HEAP_ID_79);
 
@@ -625,10 +625,10 @@ static void ov101_021D18F4(SysTask *param0, void *param1)
             Sound_SetBGMPlayerPaused(1, 1);
             break;
         case UnkEnum_ov101_021D1894_01:
-            Sound_StopBGM(1184, 0);
+            Sound_StopBGM(SEQ_SLOT_ATARI, 0);
             break;
         case UnkEnum_ov101_021D1894_02:
-            Sound_StopBGM(1185, 0);
+            Sound_StopBGM(SEQ_SLOT_OOATARI, 0);
             break;
         }
 
@@ -640,10 +640,10 @@ static void ov101_021D18F4(SysTask *param0, void *param1)
             Sound_SetBGMPlayerPaused(1, 0);
             break;
         case UnkEnum_ov101_021D1894_01:
-            Sound_PlayBasicBGM(1184);
+            Sound_PlayBasicBGM(SEQ_SLOT_ATARI);
             break;
         case UnkEnum_ov101_021D1894_02:
-            Sound_PlayBasicBGM(1185);
+            Sound_PlayBasicBGM(SEQ_SLOT_OOATARI);
             break;
         }
 
diff --git a/src/overlay104/ov104_0222FBE4.c b/src/overlay104/ov104_0222FBE4.c
index 1fa5c3fcd3..e6498f7ea5 100644
--- a/src/overlay104/ov104_0222FBE4.c
+++ b/src/overlay104/ov104_0222FBE4.c
@@ -1642,7 +1642,7 @@ static BOOL ov104_02230B50(UnkStruct_ov104_0222E930 *param0)
     MI_CpuClear8(v1, sizeof(FieldBattleDTO));
 
     sub_0202F298(v2->saveData, 11, &v0, v1, 0);
-    Sound_SetSceneAndPlayBGM(5, 1119, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_BATTLE, SEQ_BATTLE_TRAINER, 1);
     sub_0209B988(param0->unk_00->unk_00, &gBattleOverlayTemplate, v1, 1, NULL);
 
     return 1;
@@ -2477,7 +2477,7 @@ static BOOL ov104_02231A28(UnkStruct_ov104_0222E930 *param0)
     v0 = sub_0209B970(param0->unk_00->unk_00);
     param0->unk_78[0] = ov104_0222FC00(param0);
 
-    Sound_SetSceneAndPlayBGM(5, 1119, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_BATTLE, SEQ_BATTLE_TRAINER, 1);
 
     v1 = Heap_AllocFromHeap(HEAP_ID_FIELDMAP, sizeof(UnkStruct_ov104_02231148));
     v1->unk_14 = sub_0209B978(param0->unk_00->unk_00);
@@ -2720,7 +2720,7 @@ static BOOL ov104_02231DAC(UnkStruct_ov104_0222E930 *param0)
 
     ov104_0223D554(v0, &v2, &v3);
     ov104_0223DC7C(v1, v0->unk_00, v0->unk_34.unk_00, v0->unk_34.unk_04, v0->unk_04, &param0->unk_78[0], v2, v3);
-    Sound_SetSceneAndPlayBGM(5, 1202, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_BATTLE, SEQ_BATTLE_FRONTIER_BRAIN, 1);
     ov104_0222E974(param0, ov104_02231E14);
 
     return 1;
diff --git a/src/overlay104/ov104_02234838.c b/src/overlay104/ov104_02234838.c
index 1525ecdf1e..41b86e1414 100644
--- a/src/overlay104/ov104_02234838.c
+++ b/src/overlay104/ov104_02234838.c
@@ -162,7 +162,7 @@ BOOL ov104_022349B8(UnkStruct_ov104_0222E930 *param0)
 
     v1->unk_700 = v0;
 
-    Sound_SetSceneAndPlayBGM(5, 1119, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_BATTLE, SEQ_BATTLE_TRAINER, 1);
     sub_0209B988(param0->unk_00->unk_00, &gBattleOverlayTemplate, v0, 0, NULL);
 
     return 1;
diff --git a/src/overlay104/ov104_02239130.c b/src/overlay104/ov104_02239130.c
index c4d8b17469..65f308769f 100644
--- a/src/overlay104/ov104_02239130.c
+++ b/src/overlay104/ov104_02239130.c
@@ -196,7 +196,7 @@ BOOL ov104_02239314(UnkStruct_ov104_0222E930 *param0)
 
     v1->unk_8D0 = v0;
 
-    Sound_SetSceneAndPlayBGM(5, 1119, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_BATTLE, SEQ_BATTLE_TRAINER, 1);
     sub_0209B988(param0->unk_00->unk_00, &gBattleOverlayTemplate, v0, 0, NULL);
 
     return 1;
diff --git a/src/overlay104/ov104_0223C2D4.c b/src/overlay104/ov104_0223C2D4.c
index 481ef00ac3..6eb87d5beb 100644
--- a/src/overlay104/ov104_0223C2D4.c
+++ b/src/overlay104/ov104_0223C2D4.c
@@ -180,7 +180,7 @@ UnkStruct_ov104_0223C4CC *ov104_0223C2D4(UnkStruct_0209B75C *param0)
     GXLayers_TurnBothDispOn();
     GXLayers_EngineAToggleLayers(GX_PLANEMASK_OBJ, 1);
     GXLayers_EngineBToggleLayers(GX_PLANEMASK_OBJ, 1);
-    Sound_SetSceneAndPlayBGM(4, ov104_0222EA90(v2, 3), 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_FIELD, ov104_0222EA90(v2, 3), 1);
 
     RenderControlFlags_SetAutoScrollFlags(1);
     RenderControlFlags_SetCanABSpeedUpPrint(0);
diff --git a/src/overlay109/ov109_021D0D80.c b/src/overlay109/ov109_021D0D80.c
index 503f8a826e..c4c9d7cafa 100644
--- a/src/overlay109/ov109_021D0D80.c
+++ b/src/overlay109/ov109_021D0D80.c
@@ -785,7 +785,7 @@ static int ov109_021D122C(UnkStruct_ov109_021D0F70 *param0)
     param0->unk_D4.unk_40 = (FX32_ONE * (v1->unk_04));
     param0->unk_00 = 17;
 
-    Sound_SetSceneAndPlayBGM(15, 1210, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_15, SEQ_PL_GURUGURU, 1);
     ov109_021D2788(param0);
 
     return 1;
@@ -1455,7 +1455,7 @@ static int ov109_021D1BA4(UnkStruct_ov109_021D0F70 *param0)
     StartScreenTransition(2, 0, 0, 0x0, 8, 1, HEAP_ID_95);
 
     if (param0->unk_1C != Sound_Impl_GetCurrentBGM()) {
-        Sound_SetSceneAndPlayBGM(4, param0->unk_1C, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_FIELD, param0->unk_1C, 1);
     }
 
     param0->unk_00 = 52;
diff --git a/src/overlay109/ov109_021D3D50.c b/src/overlay109/ov109_021D3D50.c
index a7cf300095..da152f516b 100644
--- a/src/overlay109/ov109_021D3D50.c
+++ b/src/overlay109/ov109_021D3D50.c
@@ -204,7 +204,7 @@ int ov109_021D3D50(OverlayManager *param0, int *param1)
         ov109_021D441C(v0, v1);
         ov109_021D4518(v0);
         ov109_021D45F4(v0);
-        Sound_SetSceneAndPlayBGM(52, 0, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_52, SEQ_NONE, 0);
         sub_0209BE50(v2->unk_34);
         sub_020378B8();
         sub_02037B58(3);
diff --git a/src/overlay111/ov111_021D0D80.c b/src/overlay111/ov111_021D0D80.c
index 27cf92b312..6e386164d0 100644
--- a/src/overlay111/ov111_021D0D80.c
+++ b/src/overlay111/ov111_021D0D80.c
@@ -351,7 +351,7 @@ int ov111_021D0D80(OverlayManager *param0, int *param1)
 
     ov111_021D1D68(v1);
     (*param1) = 0;
-    Sound_SetSceneAndPlayBGM(68, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_68, SEQ_NONE, 0);
 
     return 1;
 }
diff --git a/src/overlay114/ov114_0225C700.c b/src/overlay114/ov114_0225C700.c
index 10519018b1..793da47af5 100644
--- a/src/overlay114/ov114_0225C700.c
+++ b/src/overlay114/ov114_0225C700.c
@@ -1621,7 +1621,7 @@ static UnkStruct_ov114_0225D678 *ov114_0225D48C(const UnkStruct_ov114_0225C76C *
     UnkStruct_ov114_0225D678 *v0;
     int v1;
 
-    Sound_SetSceneAndPlayBGM(19, 1211, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_19, SEQ_PL_WIFIGAME, 0);
 
     v0 = Heap_AllocFromHeap(heapID, sizeof(UnkStruct_ov114_0225D678));
     memset(v0, 0, sizeof(UnkStruct_ov114_0225D678));
diff --git a/src/overlay119/ov119_021D191C.c b/src/overlay119/ov119_021D191C.c
index 6606cda632..24257e5920 100644
--- a/src/overlay119/ov119_021D191C.c
+++ b/src/overlay119/ov119_021D191C.c
@@ -76,7 +76,7 @@ static BOOL ov119_021D1930(UnkStruct_ov119_021D0FD0 *param0)
     case 2:
         if (IsScreenTransitionDone() == 1) {
             Sound_StopWaveOutAndSequences();
-            Sound_SetSceneAndPlayBGM(13, 1141, 1);
+            Sound_SetSceneAndPlayBGM(SOUND_SCENE_13, SEQ_SHINKA, 1);
             param0->unk_60++;
         }
         break;
@@ -255,7 +255,7 @@ static BOOL ov119_021D1BD0(UnkStruct_ov119_021D0FD0 *param0)
         param0->unk_60++;
     case 2:
         if (IsScreenTransitionDone() == 1) {
-            Sound_SetSceneAndPlayBGM(13, 1141, 1);
+            Sound_SetSceneAndPlayBGM(SOUND_SCENE_13, SEQ_SHINKA, 1);
             param0->unk_60++;
         }
         break;
diff --git a/src/pokeradar.c b/src/pokeradar.c
index ee8512e83d..b9f1cc3011 100644
--- a/src/pokeradar.c
+++ b/src/pokeradar.c
@@ -138,7 +138,7 @@ BOOL RadarSpawnPatches(FieldSystem *fieldSystem, const int param1, const int par
 
     if (v7 == 0) {
         RadarChain_Clear(chain);
-        sub_02055554(fieldSystem, sub_02055428(fieldSystem, fieldSystem->location->mapId), 1);
+        sub_02055554(fieldSystem, Sound_GetOverrideBGM(fieldSystem, fieldSystem->location->mapId), 1);
     } else {
         chain->active = TRUE;
     }
@@ -291,7 +291,7 @@ void sub_0206979C(FieldSystem *fieldSystem)
 
     if (v3 == 4) {
         RadarChain_Clear(fieldSystem->chain);
-        sub_02055554(fieldSystem, sub_02055428(fieldSystem, fieldSystem->location->mapId), 1);
+        sub_02055554(fieldSystem, Sound_GetOverrideBGM(fieldSystem, fieldSystem->location->mapId), 1);
     }
 }
 
diff --git a/src/rtc.c b/src/rtc.c
index b0125a9806..057d0f0e5f 100644
--- a/src/rtc.c
+++ b/src/rtc.c
@@ -125,10 +125,10 @@ BOOL IsNight(void)
     switch (GetTimeOfDay()) {
     case TIMEOFDAY_LATE_NIGHT:
     case TIMEOFDAY_NIGHT:
-        return 1;
+        return TRUE;
     }
 
-    return 0;
+    return FALSE;
 }
 
 enum TimeOfDay GetTimeOfDay(void)
diff --git a/src/scrcmd.c b/src/scrcmd.c
index 820e65cb46..f65f35a43b 100644
--- a/src/scrcmd.c
+++ b/src/scrcmd.c
@@ -999,7 +999,7 @@ const ScrCmdFunc Unk_020EAC58[] = {
     ScrCmd_0E7,
     ScrCmd_0E8,
     ScrCmd_0E9,
-    ScrCmd_0EA,
+    ScrCmd_PlayTrainerEncounterBGM,
     ScrCmd_BlackOutFromBattle,
     ScrCmd_CheckWonBattle,
     ScrCmd_CheckLostBattle,
@@ -4712,7 +4712,7 @@ static BOOL ScrCmd_SetPlayerBike(ScriptContext *ctx)
         PlayerAvatar_SetRequestStateBit(ctx->fieldSystem->playerAvatar, (1 << 0));
         PlayerAvatar_RequestChangeState(ctx->fieldSystem->playerAvatar);
         Sound_SetSpecialBGM(ctx->fieldSystem, 0);
-        sub_02055554(ctx->fieldSystem, sub_02055428(ctx->fieldSystem, ctx->fieldSystem->location->mapId), 1);
+        sub_02055554(ctx->fieldSystem, Sound_GetOverrideBGM(ctx->fieldSystem, ctx->fieldSystem->location->mapId), 1);
     }
 
     return FALSE;
@@ -6366,7 +6366,7 @@ static BOOL ScrCmd_20F(ScriptContext *ctx)
     u16 *v0 = ScriptContext_GetVarPointer(ctx);
     u16 v1 = ScriptContext_ReadHalfWord(ctx);
 
-    Sound_SetSceneAndPlayBGM(65, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_65, SEQ_NONE, 0);
     ov6_02242B58(ctx->fieldSystem, *v0, v1);
 
     return 1;
diff --git a/src/sound.c b/src/sound.c
index cb538bd7d0..beccc13212 100644
--- a/src/sound.c
+++ b/src/sound.c
@@ -4,7 +4,6 @@
 #include <string.h>
 
 #include "constants/species.h"
-#include "generated/sdat.h"
 
 #include "global/utility.h"
 
@@ -55,7 +54,7 @@ void Sound_SetCurrentBGM(u16 bgmID)
     u16 *param = SoundSystem_GetParam(SOUND_SYSTEM_PARAM_CURRENT_BGM);
     *param = bgmID;
 
-    Sound_SetNextBGM(0);
+    Sound_SetNextBGM(SEQ_NONE);
 }
 
 u16 Sound_Impl_GetCurrentBGM(void)
@@ -278,7 +277,7 @@ BOOL Sound_SetSceneAndPlayBGM(u8 scene, u16 bgmID, int unused)
     case SOUND_SCENE_CONTEST:
         Sound_Impl_PlayContestBGM(bgmID, unused);
         break;
-    case 7:
+    case SOUND_SCENE_7:
         sub_020048F0(bgmID, unused);
         break;
     case SOUND_SCENE_SUB_BAG:
@@ -301,35 +300,35 @@ BOOL Sound_SetSceneAndPlayBGM(u8 scene, u16 bgmID, int unused)
     case 68:
         Sound_Impl_LoadSubSceneSoundData(scene);
         break;
-    case 1:
+    case SOUND_SCENE_1:
         Sound_ConfigureBGMChannelsAndReverb(SOUND_CHANNEL_CONFIG_TITLE);
         Sound_Impl_PlayCutsceneBGM(scene, bgmID, unused);
         break;
-    case 14:
+    case SOUND_SCENE_14:
         Sound_ConfigureBGMChannelsAndReverb(SOUND_CHANNEL_CONFIG_ENDING);
         Sound_Impl_PlayCutsceneBGM(scene, bgmID, unused);
         break;
-    case 2:
+    case SOUND_SCENE_2:
         Sound_ConfigureBGMChannelsAndReverb(SOUND_CHANNEL_CONFIG_DEFAULT);
         Sound_Impl_PlayCutsceneBGM(scene, bgmID, unused);
         break;
-    case 3:
-    case 8:
-    case 9:
-    case 10:
-    case 12:
-    case 13:
-    case 15:
-    case 16:
-    case 17:
-    case 18:
-    case 19:
-    case 20:
-    case 21:
-    case 23:
+    case SOUND_SCENE_3:
+    case SOUND_SCENE_8:
+    case SOUND_SCENE_9:
+    case SOUND_SCENE_10:
+    case SOUND_SCENE_12:
+    case SOUND_SCENE_13:
+    case SOUND_SCENE_15:
+    case SOUND_SCENE_16:
+    case SOUND_SCENE_17:
+    case SOUND_SCENE_18:
+    case SOUND_SCENE_19:
+    case SOUND_SCENE_20:
+    case SOUND_SCENE_21:
+    case SOUND_SCENE_23:
         Sound_Impl_PlayCutsceneBGM(scene, bgmID, unused);
         break;
-    case 22:
+    case SOUND_SCENE_22:
         Sound_Impl_PlayCutsceneBGM(scene, bgmID, unused);
         break;
     }
@@ -488,14 +487,14 @@ static void Sound_Impl_PlayCutsceneBGM(u8 scene, u16 bgmID, int unused)
     Sound_PlayBGM(bgmID);
 }
 
-void sub_02004950(u16 param0)
+void Sound_SwapBGM(u16 bgmID)
 {
-    int v0;
+    BOOL v0;
     SoundSystem *v1 = SoundSystem_Get();
 
     Sound_Impl_PauseOrStopFieldBGM();
 
-    v0 = Sound_PlayBGM(param0);
+    v0 = Sound_PlayBGM(bgmID);
     return;
 }
 
@@ -1091,7 +1090,7 @@ static void Sound_Impl_FadeToBGM(u8 unused1, u16 bgmID, int fadeOutFrames, int f
     const NNSSndArcBankInfo **currentBankInfo = SoundSystem_GetParam(SOUND_SYSTEM_PARAM_CURRENT_BANK_INFO);
 
     Sound_FadeOutBGM(SOUND_VOLUME_MIN, fadeOutFrames);
-    Sound_SetCurrentBGM(0);
+    Sound_SetCurrentBGM(SEQ_NONE);
 
     Sound_SetNextBGM(bgmID);
     Sound_SetFollowUpWaitFrames(fadeInFrames);
diff --git a/src/sound_playback.c b/src/sound_playback.c
index 442b71ce70..b5e4d31b26 100644
--- a/src/sound_playback.c
+++ b/src/sound_playback.c
@@ -151,8 +151,8 @@ void Sound_StopBGM(u16 bgmID, int fadeOutFrames)
 
 static void Sound_Impl_ResetBGM(void)
 {
-    Sound_SetCurrentBGM(0);
-    Sound_SetNextBGM(0);
+    Sound_SetCurrentBGM(SEQ_NONE);
+    Sound_SetNextBGM(SEQ_NONE);
     SoundSystem_SetState(SOUND_SYSTEM_STATE_IDLE);
 }
 
diff --git a/src/start_menu.c b/src/start_menu.c
index 6e54d4671b..c52f4d6fbb 100644
--- a/src/start_menu.c
+++ b/src/start_menu.c
@@ -1921,8 +1921,8 @@ static void StartMenu_Evolve(FieldTask *taskMan)
     if (sub_0207B0D0(menu->taskData) == 1) {
         sub_0207B0E0(menu->taskData);
         Heap_Destroy(HEAP_ID_73);
-        Sound_StopBGM(1141, 0);
-        Sound_SetScene(0);
+        Sound_StopBGM(SEQ_SHINKA, 0);
+        Sound_SetScene(SOUND_SCENE_NONE);
         sub_020556A0(fieldSystem, fieldSystem->location->mapId);
 
         menu->taskData = sub_0203D20C(fieldSystem, &menu->unk_230);
diff --git a/src/unk_02017498.c b/src/unk_02017498.c
index acc19b3c9b..cd1abadb48 100644
--- a/src/unk_02017498.c
+++ b/src/unk_02017498.c
@@ -54,7 +54,7 @@ int sub_02017498(OverlayManager *param0, int *param1)
     MI_CpuClear8(v0, sizeof(UnkStruct_02017498));
     v0->unk_00 = OverlayManager_Args(param0);
 
-    Sound_SetSceneAndPlayBGM(11, 1175, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_11, SEQ_WIFILOBBY, 1);
 
     return 1;
 }
diff --git a/src/unk_0203D1B8.c b/src/unk_0203D1B8.c
index 7c8c028cfe..f942e83a0f 100644
--- a/src/unk_0203D1B8.c
+++ b/src/unk_0203D1B8.c
@@ -1513,7 +1513,7 @@ void sub_0203E2FC(FieldSystem *fieldSystem)
     v0.unk_00 = v2;
     v0.unk_04 = SaveData_GetOptions(fieldSystem->saveData);
     v0.unk_08 = SaveData_GetTrainerInfo(fieldSystem->saveData);
-    v0.unk_0C = sub_02055428(fieldSystem, fieldSystem->location->mapId);
+    v0.unk_0C = Sound_GetOverrideBGM(fieldSystem, fieldSystem->location->mapId);
 
     sub_020985AC(fieldSystem->task, &v0);
 }
diff --git a/src/unk_020482D4.c b/src/unk_020482D4.c
index f3c4d93853..89abf646a1 100644
--- a/src/unk_020482D4.c
+++ b/src/unk_020482D4.c
@@ -60,7 +60,7 @@ BOOL ScrCmd_StopMusic(ScriptContext *ctx)
 
 BOOL ScrCmd_PlayDefaultMusic(ScriptContext *ctx)
 {
-    Sound_PlayBGM(sub_020554A4(ctx->fieldSystem, ctx->fieldSystem->location->mapId));
+    Sound_PlayBGM(Sound_GetBGMByMapID(ctx->fieldSystem, ctx->fieldSystem->location->mapId));
     return FALSE;
 }
 
@@ -219,7 +219,7 @@ BOOL ScrCmd_05C(ScriptContext *param0)
 
 BOOL ScrCmd_05D(ScriptContext *param0)
 {
-    Sound_SetSceneAndPlayBGM(63, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_63, SEQ_NONE, 0);
     return 1;
 }
 
@@ -235,9 +235,9 @@ BOOL ScrCmd_283(ScriptContext *param0)
 BOOL ScrCmd_2F8(ScriptContext *param0)
 {
     if (gSystem.heldKeys & PAD_KEY_UP) {
-        Sound_SetSceneAndPlayBGM(22, 1218, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_22, SEQ_PL_TOWN02, 1);
     } else {
-        Sound_SetSceneAndPlayBGM(22, 1218, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_22, SEQ_PL_TOWN02, 1);
     }
 
     return 1;
@@ -245,9 +245,9 @@ BOOL ScrCmd_2F8(ScriptContext *param0)
 
 BOOL ScrCmd_2F9(ScriptContext *param0)
 {
-    u16 v0 = ScriptContext_GetVar(param0);
+    u16 bgmID = ScriptContext_GetVar(param0);
 
-    Sound_SetSceneAndPlayBGM(4, v0, 1);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_FIELD, bgmID, 1);
     return 1;
 }
 
diff --git a/src/unk_02048614.c b/src/unk_02048614.c
index 2ebbba5f8f..57a65aa49d 100644
--- a/src/unk_02048614.c
+++ b/src/unk_02048614.c
@@ -35,7 +35,6 @@ BOOL ScrCmd_StartTagBattle(ScriptContext *ctx);
 BOOL ScrCmd_0E7(ScriptContext *param0);
 BOOL ScrCmd_0E8(ScriptContext *param0);
 BOOL ScrCmd_0E9(ScriptContext *param0);
-BOOL ScrCmd_0EA(ScriptContext *param0);
 BOOL ScrCmd_BlackOutFromBattle(ScriptContext *param0);
 BOOL ScrCmd_CheckHasTwoAliveMons(ScriptContext *param0);
 BOOL ScrCmd_StartDummyTrainerBattle(ScriptContext *ctx);
@@ -256,12 +255,12 @@ BOOL ScrCmd_0E9(ScriptContext *param0)
     return 0;
 }
 
-BOOL ScrCmd_0EA(ScriptContext *param0)
+BOOL ScrCmd_PlayTrainerEncounterBGM(ScriptContext *ctx)
 {
-    u16 v0 = ScriptContext_GetVar(param0);
+    u16 trainerID = ScriptContext_GetVar(ctx);
 
-    sub_02004950(sub_0205560C(v0));
-    return 1;
+    Sound_SwapBGM(Trainer_GetEncounterBGM(trainerID));
+    return TRUE;
 }
 
 BOOL ScrCmd_BlackOutFromBattle(ScriptContext *param0)
diff --git a/src/unk_020553DC.c b/src/unk_020553DC.c
index d2b93fa26d..cef8ff0444 100644
--- a/src/unk_020553DC.c
+++ b/src/unk_020553DC.c
@@ -20,101 +20,101 @@
 #include "trainer_data.h"
 #include "vars_flags.h"
 
-const static u16 Unk_020EC3E0[][2] = {
-    { 0x7, 0x450 },
-    { 0x30, 0x451 },
-    { 0x52, 0x458 },
-    { 0x2D, 0x44D },
-    { 0x2C, 0x44D },
-    { 0x2F, 0x457 },
-    { 0x19, 0x455 },
-    { 0x18, 0x455 },
-    { 0x21, 0x452 },
-    { 0x24, 0x450 },
-    { 0x20, 0x452 },
-    { 0x2A, 0x457 },
-    { 0xE, 0x44E },
-    { 0x34, 0x44E },
-    { 0x4, 0x44C },
-    { 0x32, 0x44E },
-    { 0x31, 0x44E },
-    { 0x22, 0x452 },
-    { 0x3D, 0x456 },
-    { 0x3C, 0x44C },
-    { 0x15, 0x458 },
-    { 0x14, 0x458 },
-    { 0x2, 0x44C },
-    { 0xB, 0x453 },
-    { 0x1D, 0x455 },
-    { 0x1E, 0x457 },
-    { 0x1C, 0x44D },
-    { 0xA, 0x44E },
-    { 0x50, 0x450 },
-    { 0x2B, 0x450 },
-    { 0x5, 0x456 },
-    { 0x8, 0x44D },
-    { 0x2E, 0x453 },
-    { 0x25, 0x454 },
-    { 0x11, 0x450 },
-    { 0x10, 0x44C },
-    { 0x28, 0x455 },
-    { 0x27, 0x455 },
-    { 0x3, 0x456 },
-    { 0x6, 0x44C },
-    { 0x9, 0x451 },
-    { 0x17, 0x458 },
-    { 0xC, 0x457 },
-    { 0xD, 0x457 },
-    { 0x49, 0x44F },
-    { 0x59, 0x44F },
-    { 0x48, 0x44F },
-    { 0x57, 0x44F },
-    { 0x58, 0x44F },
-    { 0x23, 0x452 },
-    { 0x51, 0x458 },
-    { 0x1A, 0x458 },
-    { 0x3B, 0x458 },
-    { 0x47, 0x451 },
-    { 0x12, 0x451 },
-    { 0x46, 0x451 },
-    { 0x3A, 0x458 },
-    { 0x55, 0x456 },
-    { 0xF, 0x458 },
-    { 0x16, 0x44D },
-    { 0x26, 0x44E },
-    { 0x1F, 0x455 },
-    { 0x37, 0x457 },
-    { 0x38, 0x457 },
-    { 0x39, 0x44E },
-    { 0x29, 0x454 },
-    { 0x13, 0x457 },
-    { 0x1B, 0x455 },
-    { 0x53, 0x458 },
-    { 0x54, 0x458 },
-    { 0x33, 0x452 },
-    { 0x36, 0x455 },
-    { 0x35, 0x455 },
-    { 0x41, 0x459 },
-    { 0x42, 0x459 },
-    { 0x43, 0x459 },
-    { 0x44, 0x459 },
-    { 0x45, 0x45A },
-    { 0x62, 0x458 }
+// clang-format off
+// Class, Eyes meet theme
+const static u16 sTrainerEncounterBGMs[][2] = {
+    { TRAINER_CLASS_AROMA_LADY,              SEQ_EYE_LADY },
+    { TRAINER_CLASS_RUIN_MANIAC,             SEQ_EYE_MOUNT },
+    { TRAINER_CLASS_INTERVIEWERS,            SEQ_EYE_FUN },
+    { TRAINER_CLASS_TUBER_FEMALE,            SEQ_EYE_KID },
+    { TRAINER_CLASS_TUBER_MALE,              SEQ_EYE_KID },
+    { TRAINER_CLASS_SIS_AND_BRO,             SEQ_EYE_SPORT },
+    { TRAINER_CLASS_ACE_TRAINER_FEMALE,      SEQ_EYE_ELITE },
+    { TRAINER_CLASS_ACE_TRAINER_MALE,        SEQ_EYE_ELITE },
+    { TRAINER_CLASS_LADY,                    SEQ_EYE_RICH },
+    { TRAINER_CLASS_BEAUTY,                  SEQ_EYE_LADY },
+    { TRAINER_CLASS_RICH_BOY,                SEQ_EYE_RICH },
+    { TRAINER_CLASS_SWIMMER_MALE,            SEQ_EYE_SPORT },
+    { TRAINER_CLASS_BLACK_BELT,              SEQ_EYE_FIGHT },
+    { TRAINER_CLASS_GUITARIST,               SEQ_EYE_FIGHT },
+    { TRAINER_CLASS_CAMPER,                  SEQ_EYE_BOY },
+    { TRAINER_CLASS_PSYCHIC_FEMALE,          SEQ_EYE_FIGHT },
+    { TRAINER_CLASS_PSYCHIC_MALE,            SEQ_EYE_FIGHT },
+    { TRAINER_CLASS_GENTLEMAN,               SEQ_EYE_RICH },
+    { TRAINER_CLASS_SCHOOL_KID_FEMALE,       SEQ_EYE_GIRL },
+    { TRAINER_CLASS_SCHOOL_KID_MALE,         SEQ_EYE_BOY },
+    { TRAINER_CLASS_POKEFAN_FEMALE,          SEQ_EYE_FUN },
+    { TRAINER_CLASS_POKEFAN_MALE,            SEQ_EYE_FUN },
+    { TRAINER_CLASS_YOUNGSTER,               SEQ_EYE_BOY },
+    { TRAINER_CLASS_FISHERMAN,               SEQ_EYE_ENKA },
+    { TRAINER_CLASS_DRAGON_TAMER,            SEQ_EYE_ELITE },
+    { TRAINER_CLASS_BIRD_KEEPER,             SEQ_EYE_SPORT },
+    { TRAINER_CLASS_NINJA_BOY,               SEQ_EYE_KID },
+    { TRAINER_CLASS_BATTLE_GIRL,             SEQ_EYE_FIGHT },
+    { TRAINER_CLASS_PARASOL_LADY,            SEQ_EYE_LADY },
+    { TRAINER_CLASS_SWIMMER_FEMALE,          SEQ_EYE_LADY },
+    { TRAINER_CLASS_PICNICKER,               SEQ_EYE_GIRL },
+    { TRAINER_CLASS_TWINS,                   SEQ_EYE_KID },
+    { TRAINER_CLASS_SAILOR,                  SEQ_EYE_ENKA },
+    { TRAINER_CLASS_COLLECTOR,               SEQ_EYE_MYS },
+    { TRAINER_CLASS_BREEDER_FEMALE,          SEQ_EYE_LADY },
+    { TRAINER_CLASS_BREEDER_MALE,            SEQ_EYE_BOY },
+    { TRAINER_CLASS_RANGER_FEMALE,           SEQ_EYE_ELITE },
+    { TRAINER_CLASS_RANGER_MALE,             SEQ_EYE_ELITE },
+    { TRAINER_CLASS_LASS,                    SEQ_EYE_GIRL },
+    { TRAINER_CLASS_BUG_CATCHER,             SEQ_EYE_BOY },
+    { TRAINER_CLASS_HIKER,                   SEQ_EYE_MOUNT },
+    { TRAINER_CLASS_YOUNG_COUPLE,            SEQ_EYE_FUN },
+    { TRAINER_CLASS_CYCLIST_MALE,            SEQ_EYE_SPORT },
+    { TRAINER_CLASS_CYCLIST_FEMALE,          SEQ_EYE_SPORT },
+    { TRAINER_CLASS_GALACTIC_GRUNT_MALE,     SEQ_EYE_GINGA },
+    { TRAINER_CLASS_GALACTIC_GRUNT_FEMALE,   SEQ_EYE_GINGA },
+    { TRAINER_CLASS_COMMANDER_MARS,          SEQ_EYE_GINGA },
+    { TRAINER_CLASS_COMMANDER_JUPITER,       SEQ_EYE_GINGA },
+    { TRAINER_CLASS_COMMANDER_SATURN,        SEQ_EYE_GINGA },
+    { TRAINER_CLASS_SOCIALITE,               SEQ_EYE_RICH },
+    { TRAINER_CLASS_WAITER,                  SEQ_EYE_FUN },
+    { TRAINER_CLASS_WAITRESS,                SEQ_EYE_FUN },
+    { TRAINER_CLASS_WORKER,                  SEQ_EYE_FUN },
+    { TRAINER_CLASS_RANCHER,                 SEQ_EYE_MOUNT },
+    { TRAINER_CLASS_COWGIRL,                 SEQ_EYE_MOUNT },
+    { TRAINER_CLASS_BELLE_AND_PA,            SEQ_EYE_MOUNT },
+    { TRAINER_CLASS_CLOWN,                   SEQ_EYE_FUN },
+    { TRAINER_CLASS_IDOL,                    SEQ_EYE_GIRL },
+    { TRAINER_CLASS_ARTIST,                  SEQ_EYE_FUN },
+    { TRAINER_CLASS_POKE_KID,                SEQ_EYE_KID },
+    { TRAINER_CLASS_POLICEMAN,               SEQ_EYE_FIGHT },
+    { TRAINER_CLASS_DOUBLE_TEAM,             SEQ_EYE_ELITE },
+    { TRAINER_CLASS_SKIER_MALE,              SEQ_EYE_SPORT },
+    { TRAINER_CLASS_SKIER_FEMALE,            SEQ_EYE_SPORT },
+    { TRAINER_CLASS_ROUGHNECK,               SEQ_EYE_FIGHT },
+    { TRAINER_CLASS_SCIENTIST,               SEQ_EYE_MYS },
+    { TRAINER_CLASS_JOGGER,                  SEQ_EYE_SPORT },
+    { TRAINER_CLASS_VETERAN,                 SEQ_EYE_ELITE },
+    { TRAINER_CLASS_CAMERAMAN,               SEQ_EYE_FUN },
+    { TRAINER_CLASS_REPORTER,                SEQ_EYE_FUN },
+    { TRAINER_CLASS_PI,                      SEQ_EYE_RICH },
+    { TRAINER_CLASS_ACE_TRAINER_SNOW_FEMALE, SEQ_EYE_ELITE },
+    { TRAINER_CLASS_ACE_TRAINER_SNOW_MALE,   SEQ_EYE_ELITE },
+    { TRAINER_CLASS_ELITE_FOUR_AARON,        SEQ_EYE_TENNO },
+    { TRAINER_CLASS_ELITE_FOUR_BERTHA,       SEQ_EYE_TENNO },
+    { TRAINER_CLASS_ELITE_FOUR_FLINT,        SEQ_EYE_TENNO },
+    { TRAINER_CLASS_ELITE_FOUR_LUCIAN,       SEQ_EYE_TENNO },
+    { TRAINER_CLASS_CHAMPION_CYNTHIA,        SEQ_EYE_CHAMP },
+    { TRAINER_CLASS_MAID,                    SEQ_EYE_FUN }
 };
+// clang-format on
 
 void sub_020553DC(void);
-u16 sub_02055428(FieldSystem *fieldSystem, int param1);
-u16 sub_020554A4(FieldSystem *fieldSystem, int param1);
-static u16 sub_020554E8(FieldSystem *fieldSystem, int param1);
+static u16 FieldSystem_GetAltMusicForCyclingRoad(FieldSystem *fieldSystem, int headerID);
 BOOL sub_02055554(FieldSystem *fieldSystem, u16 param1, int param2);
 static void sub_020555CC(FieldSystem *fieldSystem, int param1, int *param2, int *param3);
-u16 sub_0205560C(int param0);
 
 void sub_020553DC()
 {
     Sound_StopWaveOutAndSequences();
     Sound_ClearBGMPauseFlags();
-    Sound_SetScene(0);
+    Sound_SetScene(SOUND_SCENE_NONE);
 }
 
 void Sound_SetSpecialBGM(FieldSystem *fieldSystem, u16 sdatID)
@@ -137,71 +137,68 @@ void Sound_ClearSpecialBGM(FieldSystem *fieldSystem)
     *bgm = 0;
 }
 
-u16 sub_02055428(FieldSystem *fieldSystem, int param1)
+u16 Sound_GetOverrideBGM(FieldSystem *fieldSystem, enum MapHeader mapID)
 {
     PlayerAvatar *playerAvatar = fieldSystem->playerAvatar;
-    int v1;
-    u16 v2, v3;
+    int playerState = PlayerAvatar_GetPlayerState(playerAvatar);
 
-    v1 = PlayerAvatar_GetPlayerState(playerAvatar);
-
-    if (v1 == 0x2) {
-        switch (param1) {
-        case 573:
-        case 574:
-        case 575:
-        case 576:
-        case 577:
-        case 579:
-        case 580:
-        case 581:
-        case 582:
-        case 583:
+    if (playerState == PLAYER_STATE_SURFING) {
+        switch (mapID) {
+        case MAP_HEADER_DISTORTION_WORLD_1F:
+        case MAP_HEADER_DISTORTION_WORLD_B1F:
+        case MAP_HEADER_DISTORTION_WORLD_B2F:
+        case MAP_HEADER_DISTORTION_WORLD_B3F:
+        case MAP_HEADER_DISTORTION_WORLD_B4F:
+        case MAP_HEADER_DISTORTION_WORLD_B5F:
+        case MAP_HEADER_DISTORTION_WORLD_B6F:
+        case MAP_HEADER_DISTORTION_WORLD_B7F:
+        case MAP_HEADER_DISTORTION_WORLD_GIRATINA_ROOM:
+        case MAP_HEADER_DISTORTION_WORLD_TURNBACK_CAVE_ROOM:
             break;
         default:
-            return 1151;
+            return SEQ_NAMINORI;
         }
     }
 
-    if (GetRadarChainActive(fieldSystem->chain) == 1) {
-        return 1150;
+    if (GetRadarChainActive(fieldSystem->chain) == TRUE) {
+        return SEQ_POKERADAR;
     }
 
-    v2 = sub_020554A4(fieldSystem, param1);
+    u16 bgmID = Sound_GetBGMByMapID(fieldSystem, mapID);
 
-    if (Sound_GetSpecialBGM(fieldSystem) != 0) {
-        v2 = Sound_GetSpecialBGM(fieldSystem);
+    if (Sound_GetSpecialBGM(fieldSystem) != SEQ_NONE) {
+        bgmID = Sound_GetSpecialBGM(fieldSystem);
     }
 
-    return v2;
+    return bgmID;
 }
 
-u16 sub_020554A4(FieldSystem *fieldSystem, int headerID)
+u16 Sound_GetBGMByMapID(FieldSystem *fieldSystem, int mapID)
 {
     u16 sdatID;
 
     if (IsNight() == FALSE) {
-        sdatID = MapHeader_GetDayMusicID(headerID);
+        sdatID = MapHeader_GetDayMusicID(mapID);
     } else {
-        sdatID = MapHeader_GetNightMusicID(headerID);
+        sdatID = MapHeader_GetNightMusicID(mapID);
     }
 
-    u16 v1 = SystemFlag_GetAltMusicForHeader(SaveData_GetVarsFlags(fieldSystem->saveData), headerID);
+    u16 altSdatID = SystemFlag_GetAltMusicForHeader(SaveData_GetVarsFlags(fieldSystem->saveData), mapID);
 
-    if (v1 != 0) {
-        sdatID = v1;
+    if (altSdatID != SEQ_NONE) {
+        sdatID = altSdatID;
     }
 
-    v1 = sub_020554E8(fieldSystem, headerID);
+    altSdatID = FieldSystem_GetAltMusicForCyclingRoad(fieldSystem, mapID);
 
-    if (v1 != 0) {
-        sdatID = v1;
+    if (altSdatID != SEQ_NONE) {
+        sdatID = altSdatID;
     }
 
     return sdatID;
 }
 
-static u16 sub_020554E8(FieldSystem *fieldSystem, int param1)
+static u16 FieldSystem_GetAltMusicForCyclingRoad(FieldSystem *fieldSystem, int headerID)
 {
     int x, y;
     FieldOverworldState *fieldState = SaveData_GetFieldOverworldState(fieldSystem->saveData);
@@ -210,8 +207,8 @@ static u16 sub_020554E8(FieldSystem *fieldSystem, int param1)
     x = Player_GetXPos(fieldSystem->playerAvatar);
     y = Player_GetZPos(fieldSystem->playerAvatar);
 
-    if (param1 != 350) {
-        return 0;
+    if (headerID != MAP_HEADER_ROUTE_206) {
+        return SEQ_NONE;
     }
 
     if ((location->mapId == 80) || (location->mapId == 351)) {
@@ -224,36 +221,36 @@ static u16 sub_020554E8(FieldSystem *fieldSystem, int param1)
         }
 
         if ((y == 576) || (y == 681)) {
-            return 1189;
+            return SEQ_PL_BICYCLE;
         }
     }
 
     return 0;
 }
 
-BOOL sub_02055554(FieldSystem *fieldSystem, u16 param1, int param2)
+BOOL sub_02055554(FieldSystem *fieldSystem, u16 bgmID, int param2)
 {
     PlayerAvatar *playerAvatar;
-    int v1, v2, v3;
+    int v1, v2, playerState;
 
     playerAvatar = fieldSystem->playerAvatar;
-    v3 = PlayerAvatar_GetPlayerState(playerAvatar);
+    playerState = PlayerAvatar_GetPlayerState(playerAvatar);
 
     if (Sound_IsBGMFixed() == 1) {
         return 0;
     }
 
-    if (param1 == Sound_GetCurrentBGM1(fieldSystem)) {
+    if (bgmID == Sound_GetCurrentBGM1(fieldSystem)) {
         return 0;
     }
 
     Sound_ClearBGMPauseFlags();
     sub_020555CC(fieldSystem, param2, &v1, &v2);
 
-    if ((v3 == 0x1) || (v3 == 0x1)) {
-        Sound_FadeToBGM(4, param1, v1, v2, 30, 0, NULL);
+    if ((playerState == PLAYER_STATE_CYCLING) || (playerState == PLAYER_STATE_CYCLING)) { // Yes, it's checking bike twice. Maybe there was a point were Acro and Mach Bikes were still a thing?
+        Sound_FadeToBGM(4, bgmID, v1, v2, 30, 0, NULL);
     } else {
-        Sound_FadeOutAndPlayBGM(4, param1, v1, v2, 0, NULL);
+        Sound_FadeOutAndPlayBGM(4, bgmID, v1, v2, 0, NULL);
     }
 
     return 1;
@@ -281,52 +278,52 @@ static void sub_020555CC(FieldSystem *fieldSystem, int param1, int *param2, int
     }
 }
 
-u16 sub_0205560C(int param0)
+u16 Trainer_GetEncounterBGM(enum TrainerID trainerID)
 {
-    u8 v0 = (u8)Trainer_LoadParam(param0, 1);
-    u16 i, v1 = 1101;
+    u8 class = (u8)Trainer_LoadParam(trainerID, TRDATA_CLASS);
+    u16 i, bgmID = SEQ_EYE_KID;
 
-    for (i = 0; i < 79; i++) {
-        if (Unk_020EC3E0[i][0] == v0) {
-            v1 = Unk_020EC3E0[i][1];
+    for (i = 0; i < NELEMS(sTrainerEncounterBGMs); i++) {
+        if (sTrainerEncounterBGMs[i][0] == class) {
+            bgmID = sTrainerEncounterBGMs[i][1];
             break;
         }
     }
 
-    return v1;
+    return bgmID;
 }
 
-void Sound_TryFadeInBGM(FieldSystem *fieldSystem, int param1)
+void Sound_TryFadeInBGM(FieldSystem *fieldSystem, int mapID)
 {
     if (Sound_IsBGMFixed() == 1) {
         return;
     }
 
-    if (Sound_GetCurrentBGM() != sub_020554A4(fieldSystem, param1)) {
+    if (Sound_GetCurrentBGM() != Sound_GetBGMByMapID(fieldSystem, mapID)) {
         Sound_FadeOutBGM(0, 40);
     }
 }
 
-void Sound_PlayMapBGM(FieldSystem *fieldSystem, int param1)
+void Sound_PlayMapBGM(FieldSystem *fieldSystem, int mapID)
 {
-    u16 v0;
+    u16 bgmID;
 
     if (Sound_IsBGMFixed() == 1) {
         return;
     }
 
-    Sound_SetScene(0);
+    Sound_SetScene(SOUND_SCENE_NONE);
 
-    v0 = sub_020554A4(fieldSystem, param1);
+    bgmID = Sound_GetBGMByMapID(fieldSystem, mapID);
 
-    Sound_SetFieldBGM(v0);
-    Sound_SetSceneAndPlayBGM(4, v0, 1);
+    Sound_SetFieldBGM(bgmID);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_FIELD, bgmID, 1);
 }
 
-void sub_020556A0(FieldSystem *fieldSystem, int param1)
+void sub_020556A0(FieldSystem *fieldSystem, int mapID)
 {
-    u16 v0 = sub_02055428(fieldSystem, param1);
+    u16 bgmID = Sound_GetOverrideBGM(fieldSystem, mapID);
 
-    Sound_SetFieldBGM(sub_020554A4(fieldSystem, param1));
-    Sound_SetSceneAndPlayBGM(4, v0, 1);
+    Sound_SetFieldBGM(Sound_GetBGMByMapID(fieldSystem, mapID));
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_FIELD, bgmID, 1);
 }
diff --git a/src/unk_020683F4.c b/src/unk_020683F4.c
index f437e5a045..846e8bd15e 100644
--- a/src/unk_020683F4.c
+++ b/src/unk_020683F4.c
@@ -488,7 +488,7 @@ static BOOL sub_02068884(FieldTask *task)
 
             Sound_SetSpecialBGM(fieldSystem, 0);
             sub_02055554(
-                fieldSystem, sub_02055428(fieldSystem, fieldSystem->location->mapId), 1);
+                fieldSystem, Sound_GetOverrideBGM(fieldSystem, fieldSystem->location->mapId), 1);
         } else {
             Sound_SetSpecialBGM(fieldSystem, 1152);
             sub_02055554(fieldSystem, 1152, 1);
diff --git a/src/unk_0206C784.c b/src/unk_0206C784.c
index ac90245931..5503cf3c65 100644
--- a/src/unk_0206C784.c
+++ b/src/unk_0206C784.c
@@ -39,7 +39,7 @@ typedef struct {
     int unk_0C;
     fx32 unk_10;
     fx32 unk_14;
-    int unk_18;
+    int mapID;
     int unk_1C;
     int unk_20;
     VecFx32 unk_24;
@@ -69,7 +69,7 @@ void sub_0206C784(FieldSystem *fieldSystem, const u8 param1, const u8 param2, co
 
     v0->unk_01 = param1;
     v0->unk_04 = param2;
-    v0->unk_18 = param3;
+    v0->mapID = param3;
     v0->unk_1C = param4;
     v0->unk_20 = param5;
     v0->unk_34 = *(fieldSystem->areaModelAttrs);
@@ -80,7 +80,7 @@ void sub_0206C784(FieldSystem *fieldSystem, const u8 param1, const u8 param2, co
     v0->unk_05 = 0;
     v0->unk_08 = 0;
 
-    Sound_SetSceneAndPlayBGM(64, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_64, SEQ_NONE, 0);
 
     if (param1 == 3) {
         v4 = MAP_PROP_MODEL_REGULAR_SHIP;
@@ -221,11 +221,11 @@ static BOOL sub_0206C964(FieldTask *taskMan)
         v1->unk_00 = 5;
         break;
     case 5:
-        FieldTask_ChangeMapToLocation(taskMan, v1->unk_18, -1, v1->unk_1C, v1->unk_20, v1->unk_04);
+        FieldTask_ChangeMapToLocation(taskMan, v1->mapID, -1, v1->unk_1C, v1->unk_20, v1->unk_04);
         v1->unk_00 = 6;
         break;
     case 6:
-        Sound_PlayMapBGM(fieldSystem, v1->unk_18);
+        Sound_PlayMapBGM(fieldSystem, v1->mapID);
         FieldTransition_StartMapAndFadeIn(taskMan);
         v1->unk_00 = 7;
         break;
diff --git a/src/unk_0207AE68.c b/src/unk_0207AE68.c
index b638764e6d..b31396bf07 100644
--- a/src/unk_0207AE68.c
+++ b/src/unk_0207AE68.c
@@ -300,7 +300,7 @@ static void sub_0207B180(UnkStruct_0207AE68 *param0)
     case 5:
         if ((Text_IsPrinterActive(param0->unk_65) == 0) && (Sound_IsPokemonCryPlaying() == 0) && (sub_020160F4(param0->unk_44, 0) == 1) && (PokemonSprite_IsAnimActive(param0->unk_1C[0]) == 0)) {
             sub_02015738(param0->unk_58, 1);
-            Sound_PlayBasicBGM(1141);
+            Sound_PlayBasicBGM(SEQ_SHINKA);
             param0->unk_66 = 20;
             param0->unk_64 = 6;
         }
@@ -635,7 +635,7 @@ static void sub_0207B180(UnkStruct_0207AE68 *param0)
             param0->unk_74 = 0xff;
             param0->unk_75 = 0xa0;
             param0->unk_70 = 0;
-            Sound_StopBGM(1141, 0);
+            Sound_StopBGM(SEQ_SHINKA, 0);
             sub_0207C8F4(param0->unk_30);
             param0->unk_64++;
         }
diff --git a/src/unk_0207E0B8.c b/src/unk_0207E0B8.c
index 031ef1aad3..15c25ade21 100644
--- a/src/unk_0207E0B8.c
+++ b/src/unk_0207E0B8.c
@@ -269,7 +269,7 @@ static int sub_0207E0B8(OverlayManager *param0, int *param1)
     sub_0207EB6C(v0, v1);
     sub_0201E3D8();
     sub_0201E450(4);
-    Sound_SetSceneAndPlayBGM(57, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_57, SEQ_NONE, 0);
     sub_02081A24(v0);
     sub_02082C2C(v0);
     sub_02082E58(v0);
diff --git a/src/unk_0208694C.c b/src/unk_0208694C.c
index aeac07a307..f368937332 100644
--- a/src/unk_0208694C.c
+++ b/src/unk_0208694C.c
@@ -909,7 +909,7 @@ static int sub_0208694C(OverlayManager *param0, int *param1)
         sub_02087A10(v0);
         sub_02087FC0(v0, param0, v1);
         sub_02088754(&v0->unk_41C[4], v0->unk_D8, v0->unk_158, v0->unk_15A, v0->unk_528, v0->unk_17C);
-        Sound_SetSceneAndPlayBGM(52, 0, 0);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_52, SEQ_NONE, 0);
         StartScreenTransition(0, 1, 1, 0x0, 16, 1, HEAP_ID_18);
         sub_0208732C(1);
 
diff --git a/src/unk_0208BA78.c b/src/unk_0208BA78.c
index c5ababca9f..e19be24da4 100644
--- a/src/unk_0208BA78.c
+++ b/src/unk_0208BA78.c
@@ -289,9 +289,9 @@ static BOOL sub_0208BC8C(UnkStruct_0208BC3C *param0, int heapID)
         sub_02005464(1);
 
         if (sub_0208BE80(param0->unk_10->trainer[1].header.trainerType) == 1) {
-            Sound_SetSceneAndPlayBGM(5, 1202, 1);
+            Sound_SetSceneAndPlayBGM(SOUND_SCENE_BATTLE, SEQ_BATTLE_FRONTIER_BRAIN, 1);
         } else {
-            Sound_SetSceneAndPlayBGM(5, 1119, 1);
+            Sound_SetSceneAndPlayBGM(SOUND_SCENE_BATTLE, SEQ_BATTLE_TRAINER, 1);
         }
     }
         param0->unk_08 = OverlayManager_New(&gBattleOverlayTemplate, param0->unk_10, heapID);
@@ -315,15 +315,15 @@ static BOOL sub_0208BC8C(UnkStruct_0208BC3C *param0, int heapID)
         OverlayManager_Free(param0->unk_08);
 
         {
-            u16 v1;
+            u16 bgmID;
 
             sub_02005464(0);
-            Sound_SetScene(0);
+            Sound_SetScene(SOUND_SCENE_NONE);
 
-            v1 = sub_02055428(param0->fieldSystem, param0->fieldSystem->location->mapId);
+            bgmID = Sound_GetOverrideBGM(param0->fieldSystem, param0->fieldSystem->location->mapId);
 
-            Sound_SetFieldBGM(sub_020554A4(param0->fieldSystem, param0->fieldSystem->location->mapId));
-            Sound_SetSceneAndPlayBGM(4, v1, 1);
+            Sound_SetFieldBGM(Sound_GetBGMByMapID(param0->fieldSystem, param0->fieldSystem->location->mapId));
+            Sound_SetSceneAndPlayBGM(SOUND_SCENE_FIELD, bgmID, 1);
         }
 
         param0->unk_00 = 0;
diff --git a/src/unk_0208BEBC.c b/src/unk_0208BEBC.c
index 40ae7bcfd1..78f19beca4 100644
--- a/src/unk_0208BEBC.c
+++ b/src/unk_0208BEBC.c
@@ -53,7 +53,7 @@ static int sub_0208BEBC(OverlayManager *param0, int *param1, int param2)
     Sound_SetPlayerVolume(1, (127 / 3));
 
     if (param2 != 0) {
-        Sound_SetSceneAndPlayBGM(4, 1196, 1);
+        Sound_SetSceneAndPlayBGM(SOUND_SCENE_FIELD, SEQ_PL_WIFITOWER, 1);
     }
 
     if (param2 == 0) {
diff --git a/src/unk_02097B18.c b/src/unk_02097B18.c
index 12fe0799dc..39937ff6da 100644
--- a/src/unk_02097B18.c
+++ b/src/unk_02097B18.c
@@ -180,7 +180,7 @@ static int sub_02097B18(OverlayManager *param0, int *param1)
     ov76_0223DCC0(v0);
     SetVBlankCallback(ov76_0223ECB0, v0);
     ov76_0223B8A8(v0);
-    Sound_SetSceneAndPlayBGM(59, 0, 0);
+    Sound_SetSceneAndPlayBGM(SOUND_SCENE_SUB_59, SEQ_NONE, 0);
 
     return 1;
 }
diff --git a/src/unk_02099DFC.c b/src/unk_02099DFC.c
index 3a612df061..3b5260b841 100644
--- a/src/unk_02099DFC.c
+++ b/src/unk_02099DFC.c
@@ -101,9 +101,9 @@ int sub_02099E38(OverlayManager *param0, int *param1)
 
     switch (*param1) {
     case 0:
-        Sound_StopBGM(1173, 0);
+        Sound_StopBGM(SEQ_TITLE01, 0);
         Sound_ConfigureBGMChannelsAndReverb(SOUND_CHANNEL_CONFIG_DEFAULT);
-        Sound_SetScene(0);
+        Sound_SetScene(SOUND_SCENE_NONE);
         sub_0200F344(0, 0x0);
         sub_0200F344(1, 0x0);
         SetVBlankCallback(NULL, NULL);