diff --git a/data/data_80CE77C_2.s b/data/data_80CE77C_2.s
deleted file mode 100644
index ae65a615f..000000000
--- a/data/data_80CE77C_2.s
+++ /dev/null
@@ -1,34 +0,0 @@
-    .section .rodata
-
-    .align 2,0
-
-
-	.global gUnknown_80D4144
-gUnknown_80D4144: @ 80D4144
-        .2byte 302
-        .2byte 303
-        .2byte 303
-        .2byte 301
-        .2byte 304
-        .2byte 306
-        .2byte 307
-        .2byte 0
-
-        .string "pksdir0\0"
-        .string "pksdir0\0"
-        .4byte noneText
-        .byte 0xff, 0xff, 0xff, 0xff
-        .4byte noneText
-
-        .global noneText
-        noneText:
-        .string "none\0"
-        .align 2,0
-
-        .4byte defaultText
-        .byte 0xff, 0xff, 0xff, 0xff
-        .4byte noneText
-
-        .global defaultText
-        defaultText:
-        .string "default\0"
diff --git a/include/code_80118A4.h b/include/code_80118A4.h
deleted file mode 100644
index d81f7636a..000000000
--- a/include/code_80118A4.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef GUARD_CODE_80118A4_H
-#define GUARD_CODE_80118A4_H
-
-void FadeOutAllMusic(u16);
-void PlayMenuSoundEffect(u32);
-void PlaySound(u16);
-void StopAllMusic_1(void);
-void sub_801180C(void);
-void sub_8011830(void);
-void sub_8011860(void);
-void FadeInNewBGM_(u16 songIndex, u16 speed);
-void FadeOutBGM_(u16 speed);
-void FadeOutSound(u16 songIndex, u16 speed);
-void QueueBGM_(u16 songIndex);
-void PlaySoundWithVolume(u16 songIndex, u16 volume);
-void StartBGMusic(void);
-void xxx_call_start_new_bgm(u16 songIndex);
-void StopBGMusic(void);
-void StopSound(u16 songIndex);
-
-#endif // GUARD_CODE_80118A4_H
diff --git a/include/music_util.h b/include/music_util.h
new file mode 100644
index 000000000..b26301dab
--- /dev/null
+++ b/include/music_util.h
@@ -0,0 +1,24 @@
+#ifndef GUARD_MUSIC_UTIL_H
+#define GUARD_MUSIC_UTIL_H
+
+void ResetSoundEffectCounters(void);
+void StopBGMResetSoundEffectCounters(void);
+void StartBGMusic(void);
+void UpdateSoundEffectCounters(void);
+void StopAllMusic_1(void);
+void FadeOutAllMusic(u16);
+void StartNewBGM_(u16 songIndex);
+void FadeInNewBGM_(u16 songIndex, u16 speed);
+void QueueBGM_(u16 songIndex);
+void StopBGMusic(void);
+void FadeOutBGM_(u16 speed);
+bool8 IsEqualtoBGTrack(u16 songIndex);
+void PlaySoundWithVolume(u16 songIndex, u16 volume);
+void PlaySound(u16 songIndex);
+void StopSound(u16 songIndex);
+void FadeOutSound(u16 songIndex, u16 speed);
+bool8 IsSoundPlaying(u16 songIndex);
+void PlayMenuSoundEffect(u32 arrId);
+void sub_8011A04(void);
+
+#endif // GUARD_MUSIC_UTIL_H
diff --git a/ld_script.ld b/ld_script.ld
index 2a63ddd25..e6e9a2532 100755
--- a/ld_script.ld
+++ b/ld_script.ld
@@ -451,7 +451,6 @@ SECTIONS {
         src/friend_areas_map_util.o(.rodata);
         src/world_map_sound.o(.rodata);
         src/music_util.o(.rodata);
-        data/data_80CE77C_2.o(.rodata);
         src/debug.o(.rodata);
         src/save.o(.rodata);
         src/save_read.o(.rodata);
diff --git a/src/adventure_log.c b/src/adventure_log.c
index 7ef542156..50abf7e12 100644
--- a/src/adventure_log.c
+++ b/src/adventure_log.c
@@ -3,7 +3,7 @@
 #include "constants/input.h"
 #include "structs/struct_sub80095e4.h"
 #include "adventure_log.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_8097670.h"
 #include "input.h"
 #include "memory.h"
diff --git a/src/code_800DAC0.c b/src/code_800DAC0.c
index 30ba9dbd8..09cd74f99 100644
--- a/src/code_800DAC0.c
+++ b/src/code_800DAC0.c
@@ -3,7 +3,7 @@
 #include "bg_control.h"
 #include "code_800DAC0.h"
 #include "code_800E9A8.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_803E724.h"
 #include "def_filearchives.h"
 #include "dungeon_map.h"
diff --git a/src/code_8012A18.c b/src/code_8012A18.c
index 320dc087d..0c30d3175 100644
--- a/src/code_8012A18.c
+++ b/src/code_8012A18.c
@@ -3,7 +3,7 @@
 #include "code_800558C.h"
 #include "graphics_memory.h"
 #include "code_800C9CC.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "string_format.h"
 #include "game_options.h"
 #include "sprite.h"
@@ -11,7 +11,7 @@
 
 void sub_8012A18()
 {
-    sub_8011860();
+    UpdateSoundEffectCounters();
     DrawDialogueBoxString();
     nullsub_8(gGameOptionsRef->unkA);
     sub_8005180();
diff --git a/src/code_8015080.c b/src/code_8015080.c
index f547dc339..b61f00881 100644
--- a/src/code_8015080.c
+++ b/src/code_8015080.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_803D0D8.h"
 #include "input.h"
 #include "memory.h"
diff --git a/src/code_801AFA4.c b/src/code_801AFA4.c
index 1185ff818..6deae7926 100644
--- a/src/code_801AFA4.c
+++ b/src/code_801AFA4.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "string_format.h"
 #include "code_801AFA4.h"
 #include "code_8099360.h"
diff --git a/src/code_801B3C0.c b/src/code_801B3C0.c
index 869febe5c..76258d19d 100644
--- a/src/code_801B3C0.c
+++ b/src/code_801B3C0.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801B3C0.h"
 #include "input.h"
 #include "items.h"
diff --git a/src/code_801B60C.c b/src/code_801B60C.c
index d42ba3f1c..aae966bff 100644
--- a/src/code_801B60C.c
+++ b/src/code_801B60C.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/colors.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801B3C0.h"
 #include "code_801B60C.h"
 #include "code_8099360.h"
diff --git a/src/code_801C8C4.c b/src/code_801C8C4.c
index 18fefa423..8954129b1 100644
--- a/src/code_801C8C4.c
+++ b/src/code_801C8C4.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801C8C4.h"
 #include "input.h"
 #include "items.h"
diff --git a/src/code_801D9E4.c b/src/code_801D9E4.c
index e49db9059..b2a40b3dd 100644
--- a/src/code_801D9E4.c
+++ b/src/code_801D9E4.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "constants/input.h"
 #include "structs/struct_sub80095e4.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801D9E4.h"
 #include "ground_main.h"
 #include "input.h"
diff --git a/src/code_801EE10.c b/src/code_801EE10.c
index c70dda660..579a96fb9 100644
--- a/src/code_801EE10.c
+++ b/src/code_801EE10.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/input.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801EE10.h"
 #include "input.h"
 #include "items.h"
diff --git a/src/code_801F428.c b/src/code_801F428.c
index b96e35540..8878c1858 100644
--- a/src/code_801F428.c
+++ b/src/code_801F428.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "structs/struct_sub80095e4.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "input.h"
 #include "memory.h"
 #include "menu_input.h"
diff --git a/src/code_801F808.c b/src/code_801F808.c
index 7682e2653..43bb8fa92 100644
--- a/src/code_801F808.c
+++ b/src/code_801F808.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "structs/menu.h"
 #include "structs/str_text.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "input.h"
 #include "memory.h"
 #include "menu_input.h"
diff --git a/src/code_80227B8.c b/src/code_80227B8.c
index d7a4bf8a4..0cfc473f8 100644
--- a/src/code_80227B8.c
+++ b/src/code_80227B8.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/colors.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801AFA4.h"
 #include "code_801B3C0.h"
 #include "code_80227B8.h"
diff --git a/src/code_8023144.c b/src/code_8023144.c
index c5d8565ef..d7fbe641c 100644
--- a/src/code_8023144.c
+++ b/src/code_8023144.c
@@ -3,7 +3,7 @@
 #include "constants/colors.h"
 #include "constants/input.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_8023144.h"
 #include "exclusive_pokemon.h"
 #include "friend_area.h"
diff --git a/src/code_8024458.c b/src/code_8024458.c
index 3997054c0..4c414fdd4 100644
--- a/src/code_8024458.c
+++ b/src/code_8024458.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/input.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_8024458.h"
 #include "event_flag.h"
 #include "input.h"
diff --git a/src/code_802DE84.c b/src/code_802DE84.c
index 5dbceb436..f731d9706 100644
--- a/src/code_802DE84.c
+++ b/src/code_802DE84.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_802DE84.h"
 #include "input.h"
 #include "memory.h"
diff --git a/src/code_8031D70.c b/src/code_8031D70.c
index 471dcabf4..270bcd092 100644
--- a/src/code_8031D70.c
+++ b/src/code_8031D70.c
@@ -3,7 +3,7 @@
 #include "constants/wonder_mail.h"
 #include "constants/colors.h"
 #include "structs/str_dungeon.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_803D0D8.h"
 #include "code_8094F88.h"
 #include "input.h"
diff --git a/src/code_806FDF4.c b/src/code_806FDF4.c
index 648c4a762..a4301e022 100644
--- a/src/code_806FDF4.c
+++ b/src/code_806FDF4.c
@@ -4,7 +4,7 @@
 #include "structs/str_pokemon.h"
 #include "dungeon_main.h"
 #include "dungeon_misc.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "dungeon_message.h"
 #include "code_806CD90.h"
 #include "code_8077274_1.h"
diff --git a/src/code_8072F3C.c b/src/code_8072F3C.c
index 253af4a9c..2bc55138c 100644
--- a/src/code_8072F3C.c
+++ b/src/code_8072F3C.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "constants/input.h"
 #include "structs/struct_sub80095e4.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_80958E8.h"
 #include "code_80A26CC.h"
 #include "input.h"
diff --git a/src/code_8099360.c b/src/code_8099360.c
index 256e5db13..94e016e6a 100644
--- a/src/code_8099360.c
+++ b/src/code_8099360.c
@@ -77,7 +77,7 @@ UNUSED static void sub_80993F0(void)
 "	sub sp, 0x28\n"
 "	movs r0, 0\n"
 "	mov r10, r0\n"
-"	bl sub_801180C\n"
+"	bl ResetSoundEffectCounters\n"
 "	movs r0, 0x10\n"
 "	bl FadeOutAllMusic\n"
 "	ldr r1, _0809948C\n"
@@ -288,7 +288,7 @@ UNUSED static void sub_80993F0(void)
 "	bl sub_8005180\n"
 "	bl sub_8099BE4\n"
 "	bl sub_8099744\n"
-"	bl sub_8011860\n"
+"	bl UpdateSoundEffectCounters\n"
 "	bl WaitForNextFrameAndAdvanceRNG\n"
 "	bl LoadBufferedInputs\n"
 "	bl nullsub_120\n"
diff --git a/src/code_809A560.c b/src/code_809A560.c
index 009c55c13..292f076cc 100644
--- a/src/code_809A560.c
+++ b/src/code_809A560.c
@@ -4,7 +4,7 @@
 #include "structs/str_3001B64.h"
 #include "code_800558C.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801D014.h"
 #include "code_8099360.h"
 #include "credits2.h"
diff --git a/src/code_809C5C4.c b/src/code_809C5C4.c
index d37abfe6c..d0b41d5d7 100644
--- a/src/code_809C5C4.c
+++ b/src/code_809C5C4.c
@@ -6,7 +6,7 @@
 #include "ground_main.h"
 #include "code_80A26CC.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "string_format.h"
 #include "input.h"
 #include "ground_lives.h"
diff --git a/src/debug.c b/src/debug.c
index d347bace2..7b8bd6f80 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -1,8 +1,14 @@
 #include "global.h"
+#include "globaldata.h"
 #include "debug.h"
 
 EWRAM_INIT static bool32 gNDS_DebugEnabled = {0}; // NDS=020EACE4
-EWRAM_INIT static u8 gUnknown_203B150 = {0};
+EWRAM_INIT static u8 sUnknown_203B150 = {0};
+
+ALIGNED(4) UNUSED static const char debug_fill18[] = "pksdir0";
+
+UNUSED static const DebugLocation sUnusedDebugLoc1 = {"none", -1, "none"};
+UNUSED static const DebugLocation sUnusedDebugLoc2 = {"default", -1, "none"};
 
 ALIGNED(4) static const char gFuncFileLineString[] = "func = '%s'\nfile = '%s'  line = %5d";
 
@@ -11,9 +17,9 @@ ALIGNED(4) static const char gFuncFileLineStringWPrefix[] = "%sfunc = '%s'\nfile
 
 ALIGNED(4) static const char gFuncFileLineString2[] = "func = '%s'\nfile = '%s'  line = %5d\n";
 
-ALIGNED(4) static const char debug_fill14[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill14[] = "pksdir0";
 ALIGNED(4) static const char gDebugPrintPrefix[] = "  Print  ";
-ALIGNED(4) static const char debug_fill13[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill13[] = "pksdir0";
 
 EWRAM_INIT UNUSED static const char *sUnusedEwramDebugStrings[] =
 {
@@ -30,22 +36,22 @@ EWRAM_INIT UNUSED static const char *sUnusedEwramDebugStrings[] =
 };
 
 ALIGNED(4) static const char gNotMountText[] = "not mount log system";
-ALIGNED(4) static const char debug_fill9[] = "pksdir0";
-ALIGNED(4) static const char debug_fill10[] = "pksdir0";
-ALIGNED(4) static const char debug_fill11[] = "pksdir0";
-ALIGNED(4) static const char debug_fill12[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill9[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill10[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill11[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill12[] = "pksdir0";
 
 ALIGNED(4) static const char gFatalText[] = "!!!!! Fatal !!!!!\n";
 ALIGNED(4) static const char gFatalErrorBufferPlaceholder[] = "%s\n";
 
-ALIGNED(4) static const char debug_fill0[] = "pksdir0";
-ALIGNED(4) static const char debug_fill1[] = "pksdir0";
-ALIGNED(4) static const char debug_fill2[] = "pksdir0";
-ALIGNED(4) static const char debug_fill3[] = "pksdir0";
-ALIGNED(4) static const char debug_fill4[] = "pksdir0";
-ALIGNED(4) static const char debug_fill5[] = "pksdir0";
-ALIGNED(4) static const char debug_fill6[] = "pksdir0";
-ALIGNED(4) static const char debug_fill7[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill0[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill1[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill2[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill3[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill4[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill5[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill6[] = "pksdir0";
+ALIGNED(4) UNUSED static const char debug_fill7[] = "pksdir0";
 
 // NORETURN attribute required for Modern
 #ifdef MODERN
@@ -122,23 +128,23 @@ static void nullsub_27(void)
 
 UNUSED static void sub_8011B08(void)
 {
-    gUnknown_203B150 = 1;
+    sUnknown_203B150 = 1;
 }
 
 UNUSED static void sub_8011B14(void)
 {
-    gUnknown_203B150 = 0;
+    sUnknown_203B150 = 0;
 }
 
 UNUSED static u8 sub_8011B20(void)
 {
-    gUnknown_203B150 = !gUnknown_203B150;
-    return gUnknown_203B150;
+    sUnknown_203B150 = !sUnknown_203B150;
+    return sUnknown_203B150;
 }
 
 UNUSED static u8 sub_8011B3C(void)
 {
-    return gUnknown_203B150;
+    return sUnknown_203B150;
 }
 
 UNUSED static void nullsub_137(void)
diff --git a/src/dungeon_music.c b/src/dungeon_music.c
index 4082bd008..277184324 100644
--- a/src/dungeon_music.c
+++ b/src/dungeon_music.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "constants/bg_music.h"
 #include "structs/menu.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "dungeon_info.h"
 #include "dungeon_music.h"
 #include "music.h"
diff --git a/src/dungeon_tilemap.c b/src/dungeon_tilemap.c
index 55ed1a4a7..a59a21641 100644
--- a/src/dungeon_tilemap.c
+++ b/src/dungeon_tilemap.c
@@ -29,7 +29,7 @@
 #include "text_1.h"
 #include "play_time.h"
 #include "code_800C9CC.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "dungeon_strings.h"
 #include "run_dungeon.h"
 
@@ -731,7 +731,7 @@ void sub_8040094(u8 r0)
     LoadBufferedInputs();
     xxx_call_update_bg_sound_input();
     UpdateDungeonMusic();
-    sub_8011860();
+    UpdateSoundEffectCounters();
 }
 
 static const s32 gUnknown_80F6568[] = {
diff --git a/src/dungeon_vram.c b/src/dungeon_vram.c
index 3b42049e3..afd20c20c 100644
--- a/src/dungeon_vram.c
+++ b/src/dungeon_vram.c
@@ -8,7 +8,7 @@
 #include "code_800558C.h"
 #include "graphics_memory.h"
 #include "code_800C9CC.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_803E724.h"
 #include "dungeon_map.h"
 #include "dungeon_music.h"
@@ -233,7 +233,7 @@ static void sub_803E490(u32 unused)
 
     gDungeon->unk181e8.unk18213 = 0;
     UpdateDungeonMusic();
-    sub_8011860();
+    UpdateSoundEffectCounters();
     TryResetDungeonMapTilesScheduledForCopy();
     ResetSprites(FALSE);
     nullsub_10(FALSE);
@@ -261,7 +261,7 @@ void sub_803E668(u32 unused)
     xxx_call_update_bg_vram();
     xxx_call_update_bg_sound_input();
     gDungeon->unk181e8.unk18213 = 0;
-    sub_8011860();
+    UpdateSoundEffectCounters();
     ResetSprites(FALSE);
     nullsub_10(FALSE);
     gUnknown_202EDD4--;
diff --git a/src/felicity_bank.c b/src/felicity_bank.c
index f14290bd4..d0d4c1226 100644
--- a/src/felicity_bank.c
+++ b/src/felicity_bank.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "common_strings.h"
 #include "felicity_bank.h"
 #include "input.h"
diff --git a/src/friend_areas_map.c b/src/friend_areas_map.c
index 2a396b16b..0f6c38187 100644
--- a/src/friend_areas_map.c
+++ b/src/friend_areas_map.c
@@ -8,7 +8,7 @@
 #include "graphics_memory.h"
 #include "code_800C9CC.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "decompress_sir.h"
 #include "friend_area.h"
 #include "friend_areas_map.h"
diff --git a/src/friend_areas_map_util.c b/src/friend_areas_map_util.c
index 9ac7617e5..e14303604 100644
--- a/src/friend_areas_map_util.c
+++ b/src/friend_areas_map_util.c
@@ -8,7 +8,7 @@
 #include "graphics_memory.h"
 #include "code_800C9CC.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "decompress_at.h"
 #include "def_filearchives.h"
 #include "friend_area.h"
@@ -390,6 +390,6 @@ void FriendAreasMap_RunFrameActions(void)
     xxx_call_update_bg_vram();
     DoScheduledMemCopies();
     xxx_call_update_bg_sound_input();
-    sub_8011860();
+    UpdateSoundEffectCounters();
     ResetSprites(FALSE);
 }
diff --git a/src/friend_list.c b/src/friend_list.c
index f4060b50e..c0d7ac6b7 100644
--- a/src/friend_list.c
+++ b/src/friend_list.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "friend_list.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "pokemon.h"
 #include "structs/str_text.h"
 #include "text_util.h"
diff --git a/src/friend_list_menu.c b/src/friend_list_menu.c
index 7c8a78298..33c656fb7 100644
--- a/src/friend_list_menu.c
+++ b/src/friend_list_menu.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/dungeon.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801602C.h"
 #include "code_801B3C0.h"
 #include "code_801EE10.h"
diff --git a/src/friend_rescue.c b/src/friend_rescue.c
index cafb366c0..55b0c4040 100644
--- a/src/friend_rescue.c
+++ b/src/friend_rescue.c
@@ -4,7 +4,7 @@
 #include "constants/monster.h"
 #include "constants/wonder_mail.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801B3C0.h"
 #include "code_801C8C4.h"
 #include "friend_list.h"
@@ -956,7 +956,7 @@ void sub_8032828(void)
             break;
         case 0x7:
             gUnknown_203B33C->status = 0;
-            sub_8011830();
+            StopBGMResetSoundEffectCounters();
             gUnknown_203B33C->status = sub_8037B28(gUnknown_203B33C->unk40);
             if (gUnknown_203B33C->status == 0) {
                 switch (gUnknown_203B33C->unk40) {
@@ -1097,7 +1097,7 @@ void sub_8032828(void)
             break;
         case 0x6A:
             gUnknown_203B33C->status = 0;
-            sub_8011830();
+            StopBGMResetSoundEffectCounters();
             gUnknown_203B33C->status = sub_8037B28(gUnknown_203B33C->unk40);
             if (gUnknown_203B33C->status == 0) {
                 switch (gUnknown_203B33C->unk40) {
diff --git a/src/ground_main.c b/src/ground_main.c
index 9204df586..342dbe5e0 100644
--- a/src/ground_main.c
+++ b/src/ground_main.c
@@ -5,7 +5,7 @@
 #include "structs/str_dungeon_setup.h"
 #include "graphics_memory.h"
 #include "code_800C9CC.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_80958E8.h"
 #include "code_8099360.h"
 #include "code_80A26CC.h"
@@ -115,7 +115,7 @@ extern void sub_809CA20(void);
 extern void sub_80A6E80(void);
 extern void sub_8099BE4(void);
 extern void sub_8099744(void);
-extern void sub_8011860(void);
+extern void UpdateSoundEffectCounters(void);
 extern void IncrementPlayTime(struct PlayTimeStruct *);
 extern void WaitForNextFrameAndAdvanceRNG(void);
 extern void LoadBufferedInputs(void);
@@ -138,7 +138,6 @@ extern void UpdateAdventureAchievements(void);
 extern void xxx_call_update_bg_sound_input(void);
 extern void sub_80A6E68(void);
 extern void sub_80060EC(void);
-extern void sub_801180C(void);
 extern void ScriptPrintNullTextbox(void);
 extern void sub_809977C(void);
 extern void GroundMap_ExecuteEvent(s32, u32);
@@ -192,7 +191,7 @@ u32 xxx_script_related_8098468(s32 param_1)
         default:
             break;
     }
-    sub_801180C();
+    ResetSoundEffectCounters();
     if (gUnknown_20398B9 == 0 && !sub_80023E4(0xd)) {
         FadeOutAllMusic(0x10);
     }
@@ -376,7 +375,7 @@ u32 xxx_script_related_8098468(s32 param_1)
             sub_80A6E80();
             sub_8099BE4();
             sub_8099744();
-            sub_8011860();
+            UpdateSoundEffectCounters();
             IncrementPlayTime(gPlayTimeRef);
             WaitForNextFrameAndAdvanceRNG();
             LoadBufferedInputs();
@@ -489,7 +488,7 @@ void sub_8098BDC(void)
     sub_80A6E80();
     sub_8099BE4();
     sub_8099744();
-    sub_8011860();
+    UpdateSoundEffectCounters();
     IncrementPlayTime(gPlayTimeRef);
     WaitForNextFrameAndAdvanceRNG();
     LoadBufferedInputs();
diff --git a/src/ground_script.c b/src/ground_script.c
index 2b13f2ea3..5e2fc9363 100644
--- a/src/ground_script.c
+++ b/src/ground_script.c
@@ -6,7 +6,7 @@
 #include "constants/monster.h"
 #include "constants/move_id.h"
 #include "code_8002774.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_8099360.h"
 #include "code_8094F88.h"
 #include "code_80958E8.h"
@@ -127,8 +127,6 @@ void DeleteGroundLives(void);
 void DeleteGroundObjects(void);
 void DeleteGroundEffects(void);
 s32 ExecuteScriptCommand(Action *action);
-bool8 IsSoundPlaying(u16 songIndex);
-bool8 IsEqualtoBGTrack(u16 songIndex);
 bool8 sub_8099B94(void);
 PixelPos SetVecFromDirectionSpeed(s8, s32);
 bool8 sub_8098DCC(u32 speed);
@@ -2035,7 +2033,7 @@ s32 ExecuteScriptCommand(Action *action)
             case 0x44: {
                 u16 id = curCmd.argByte == 0 ? sub_80A25AC((u16)curCmd.arg1) : curCmd.arg1;
                 if (id != 999) {
-                    xxx_call_start_new_bgm((u16)id);
+                    StartNewBGM_((u16)id);
                 } else {
                     StopBGMusic();
                 }
@@ -3841,7 +3839,7 @@ s32 sub_80A14E8(Action *action, u8 idx, u32 r2, s32 r3)
         case 0x44:
             if (gUnknown_2039DA8 != STOP_BGM)
             {
-                xxx_call_start_new_bgm(gUnknown_2039DA8);
+                StartNewBGM_(gUnknown_2039DA8);
                 gUnknown_2039DA8 = STOP_BGM;
                 return 1;
             }
diff --git a/src/gulpin_shop.c b/src/gulpin_shop.c
index 2d33c621e..46d5a468e 100644
--- a/src/gulpin_shop.c
+++ b/src/gulpin_shop.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801EE10.h"
 #include "code_801EE10_mid.h"
 #include "common_strings.h"
diff --git a/src/gulpin_shop_801FB50.c b/src/gulpin_shop_801FB50.c
index 2169b6d96..1b07997e1 100644
--- a/src/gulpin_shop_801FB50.c
+++ b/src/gulpin_shop_801FB50.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801EE10.h"
 #include "code_801EE10_mid.h"
 #include "friend_list.h"
diff --git a/src/hints_menu1.c b/src/hints_menu1.c
index 5f6df9848..de9bbcf90 100644
--- a/src/hints_menu1.c
+++ b/src/hints_menu1.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "structs/struct_sub80095e4.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "common_strings.h"
 #include "hints_menu1.h"
 #include "input.h"
diff --git a/src/hints_menu2.c b/src/hints_menu2.c
index b571abf92..8dfb20c9f 100644
--- a/src/hints_menu2.c
+++ b/src/hints_menu2.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "structs/struct_sub80095e4.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "common_strings.h"
 #include "hints_menu2.h"
 #include "input.h"
diff --git a/src/iq_skill_info_menu.c b/src/iq_skill_info_menu.c
index 66ba3160f..97a4d4b1d 100644
--- a/src/iq_skill_info_menu.c
+++ b/src/iq_skill_info_menu.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_8097DD0.h"
 #include "input.h"
 #include "iq_skill_info_menu.h"
diff --git a/src/iq_skill_list_menu.c b/src/iq_skill_list_menu.c
index bd33d3b23..126cff3be 100644
--- a/src/iq_skill_list_menu.c
+++ b/src/iq_skill_list_menu.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/input.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "input.h"
 #include "iq_skill_list_menu.h"
 #include "memory.h"
diff --git a/src/iq_skill_menu.c b/src/iq_skill_menu.c
index 4e6cc7783..10ea67d96 100644
--- a/src/iq_skill_menu.c
+++ b/src/iq_skill_menu.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "common_strings.h"
 #include "input.h"
 #include "iq_skill_menu.h"
diff --git a/src/kecleon_bros1.c b/src/kecleon_bros1.c
index fed069a7b..6b82b7d5c 100644
--- a/src/kecleon_bros1.c
+++ b/src/kecleon_bros1.c
@@ -3,7 +3,7 @@
 #include "structs/menu.h"
 #include "structs/str_mon_portrait.h"
 #include "structs/str_text.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801B3C0.h"
 #include "code_8099360.h"
 #include "common_strings.h"
diff --git a/src/kecleon_bros2.c b/src/kecleon_bros2.c
index 447706e57..91795f912 100644
--- a/src/kecleon_bros2.c
+++ b/src/kecleon_bros2.c
@@ -3,7 +3,7 @@
 #include "constants/input.h"
 #include "structs/struct_sub80095e4.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "input.h"
 #include "items.h"
 #include "kecleon_bros2.h"
diff --git a/src/kecleon_bros3.c b/src/kecleon_bros3.c
index 0eed202ea..f758b31c1 100644
--- a/src/kecleon_bros3.c
+++ b/src/kecleon_bros3.c
@@ -3,7 +3,7 @@
 #include "constants/input.h"
 #include "structs/struct_sub80095e4.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "input.h"
 #include "items.h"
 #include "kecleon_bros3.h"
diff --git a/src/kecleon_bros4.c b/src/kecleon_bros4.c
index 3b3d42a22..7d42e6a2a 100644
--- a/src/kecleon_bros4.c
+++ b/src/kecleon_bros4.c
@@ -5,7 +5,7 @@
 #include "structs/menu.h"
 #include "structs/struct_sub80095e4.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_8099360.h"
 #include "input.h"
 #include "items.h"
diff --git a/src/luminous_cave.c b/src/luminous_cave.c
index d0db626bb..2d2302578 100644
--- a/src/luminous_cave.c
+++ b/src/luminous_cave.c
@@ -3,7 +3,7 @@
 #include "constants/bg_music.h"
 #include "constants/colors.h"
 #include "constants/evolution_status.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801602C.h"
 #include "code_801B3C0.h"
 #include "code_8097670.h"
diff --git a/src/mailbox.c b/src/mailbox.c
index 927bf0a15..30e5fe7e0 100644
--- a/src/mailbox.c
+++ b/src/mailbox.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "structs/menu.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_802DE84.h"
 #include "code_803B050.h"
 #include "code_80958E8.h"
diff --git a/src/main_loops.c b/src/main_loops.c
index d37e4ca72..29b0e8b41 100644
--- a/src/main_loops.c
+++ b/src/main_loops.c
@@ -9,7 +9,7 @@
 #include "graphics_memory.h"
 #include "code_800C9CC.h"
 #include "code_800D090_1.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "run_dungeon.h"
 #include "code_8094F88.h"
 #include "code_80958E8.h"
@@ -129,7 +129,7 @@ void GameLoop(void)
 
     InitHeap();
     NDS_DebugInit();
-    sub_801180C();
+    ResetSoundEffectCounters();
     NDS_LoadOverlay_GroundMain();
     sub_8014144();
     LoadMonsterParameters();
@@ -286,7 +286,7 @@ static void MainLoops_RunFrameActions(u32 unused)
     // Extra call here in blue. Seems to be for 2nd screen sprites
 
     sub_80060EC();
-    sub_8011860();
+    UpdateSoundEffectCounters();
     WaitForNextFrameAndAdvanceRNG();
     LoadBufferedInputs();
 
@@ -566,7 +566,7 @@ static u32 RunGameMode_Async(u32 a0)
     s32 mode = GetScriptVarValue(NULL, START_MODE);
     bool8 ret = FALSE;
 
-    sub_801180C();
+    ResetSoundEffectCounters();
     FadeOutAllMusic(0x10);
     if (mode == MODE_CONTINUE_QUICKSAVE) {
         if (a0 == 2) {
@@ -904,7 +904,7 @@ static void LoadAndRunQuickSaveDungeon_Async(DungeonSetupStruct *setupStr)
 
         quickSaveValid = IsQuickSaveValid();
         FinishQuickSaveRead();
-        sub_8011830();
+        StopBGMResetSoundEffectCounters();
 
         if (quickSaveValid)
             sub_80121E0(0xF1208);
diff --git a/src/makuhita_dojo1.c b/src/makuhita_dojo1.c
index 0f171fb62..e61e09b41 100644
--- a/src/makuhita_dojo1.c
+++ b/src/makuhita_dojo1.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/colors.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801B60C.h"
 #include "code_80A26CC.h"
 #include "common_strings.h"
diff --git a/src/makuhita_dojo2.c b/src/makuhita_dojo2.c
index 69d0d8a00..e0e427168 100644
--- a/src/makuhita_dojo2.c
+++ b/src/makuhita_dojo2.c
@@ -3,7 +3,7 @@
 #include "constants/colors.h"
 #include "constants/input.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_80972F4.h"
 #include "code_80A26CC.h"
 #include "dungeon_info.h"
diff --git a/src/menu_input.c b/src/menu_input.c
index 777f8adeb..f8f0868b2 100644
--- a/src/menu_input.c
+++ b/src/menu_input.c
@@ -3,7 +3,7 @@
 #include "structs/axdata.h"
 #include "structs/struct_sub80095e4.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "constants/colors.h"
 #include "constants/input.h"
 #include "input.h"
diff --git a/src/mission_reward.c b/src/mission_reward.c
index 755517e15..93b8c07b4 100644
--- a/src/mission_reward.c
+++ b/src/mission_reward.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801B60C.h"
 #include "code_802F204.h"
 #include "friend_area.h"
diff --git a/src/music_util.c b/src/music_util.c
index bd4b0c295..757be00d5 100644
--- a/src/music_util.c
+++ b/src/music_util.c
@@ -1,30 +1,28 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "music.h"
 #include "constants/bg_music.h"
 
-extern const u16 gUnknown_80D4144[8];
+static EWRAM_DATA u32 sUnknownUnused = {0}; // Unused, only set in an unused function R=202DE1C | B=2134218
+static EWRAM_DATA s16 sSoundEffectCounter1 = {0}; // R=202DE20 | B=213420C
+static EWRAM_DATA s16 sSoundEffectCounter2 = {0}; // R=202DE22 | B=2134210
+static EWRAM_DATA s16 sUnusedCounter = {0}; // Contrary to the variables above, this one is never effectively checked. R=202DE24 | B=2134214
 
-static EWRAM_DATA u32 gUnknown_202DE1C = {0}; // R=202DE1C | B=2134218
-static EWRAM_DATA s16 gUnknown_202DE20 = {0}; // R=202DE20 | B=213420C
-static EWRAM_DATA s16 gUnknown_202DE22 = {0}; // R=202DE22 | B=2134210
-static EWRAM_DATA s16 gUnknown_202DE24 = {0}; // R=202DE24 | B=2134214
-
-void sub_801180C(void)
+void ResetSoundEffectCounters(void)
 {
-    gUnknown_202DE1C = 0;
-    gUnknown_202DE20 = 0;
-    gUnknown_202DE22 = 0;
-    gUnknown_202DE24 = 0;
+    sUnknownUnused = 0;
+    sSoundEffectCounter1 = 0;
+    sSoundEffectCounter2 = 0;
+    sUnusedCounter = 0;
 }
 
-void sub_8011830(void)
+void StopBGMResetSoundEffectCounters(void)
 {
     StopBGMusicVSync();
-    gUnknown_202DE20 = 0;
-    gUnknown_202DE22 = 0;
-    gUnknown_202DE24 = 0;
+    sSoundEffectCounter1 = 0;
+    sSoundEffectCounter2 = 0;
+    sUnusedCounter = 0;
 }
 
 void StartBGMusic(void)
@@ -33,16 +31,16 @@ void StartBGMusic(void)
 }
 
 // arm9.bin::020187C0
-void sub_8011860(void)
+void UpdateSoundEffectCounters(void)
 {
-    if (gUnknown_202DE20 > 0)
-        gUnknown_202DE20--;
+    if (sSoundEffectCounter1 > 0)
+        sSoundEffectCounter1--;
 
-    if (gUnknown_202DE22 > 0)
-        gUnknown_202DE22--;
+    if (sSoundEffectCounter2 > 0)
+        sSoundEffectCounter2--;
 
-    if (gUnknown_202DE24 > 0)
-        gUnknown_202DE24--;
+    if (sUnusedCounter > 0)
+        sUnusedCounter--;
 }
 
 void StopAllMusic_1(void)
@@ -59,7 +57,7 @@ void FadeOutAllMusic(u16 speed)
     FadeOutFanfareSE(STOP_SOUND_EFFECT, speed);
 }
 
-void xxx_call_start_new_bgm(u16 songIndex)
+void StartNewBGM_(u16 songIndex)
 {
     StartNewBGM(songIndex);
 }
@@ -120,25 +118,27 @@ bool8 IsSoundPlaying(u16 songIndex)
     return IsFanfareSEPlaying(songIndex);
 }
 
-void PlayMenuSoundEffect(u32 a0)
+static const u16 sMenuSoundEffects[] = {302, 303, 303, 301, 304, 306, 307};
+
+void PlayMenuSoundEffect(u32 arrId)
 {
-    if (gUnknown_202DE20 > 0)
+    if (sSoundEffectCounter1 > 0)
         return;
 
-    PlayFanfareSE(gUnknown_80D4144[a0], MAX_VOLUME);
-    gUnknown_202DE20 = 4;
+    PlayFanfareSE(sMenuSoundEffects[arrId], MAX_VOLUME);
+    sSoundEffectCounter1 = 4;
 }
 
 void sub_8011A04(void)
 {
-    if (gUnknown_202DE22 > 0)
+    if (sSoundEffectCounter2 > 0)
         return;
 
-    gUnknown_202DE22 = 3;
+    sSoundEffectCounter2 = 3;
     PlayFanfareSE(305, MAX_VOLUME);
 }
 
 UNUSED static void sub_8011A2C(u32 a0)
 {
-    gUnknown_202DE1C = a0;
+    sUnknownUnused = a0;
 }
diff --git a/src/naming_screen.c b/src/naming_screen.c
index 45dc3e11d..a7a32e5c5 100644
--- a/src/naming_screen.c
+++ b/src/naming_screen.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "naming_screen.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_803D0D8.h"
 #include "input.h"
 #include "memory.h"
diff --git a/src/options_menu2.c b/src/options_menu2.c
index 58a79b3ee..01b8d506a 100644
--- a/src/options_menu2.c
+++ b/src/options_menu2.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "constants/colors.h"
 #include "constants/input.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "input.h"
 #include "memory.h"
 #include "menu_input.h"
diff --git a/src/other_menus1.c b/src/other_menus1.c
index 19dea01f5..34e3be98c 100644
--- a/src/other_menus1.c
+++ b/src/other_menus1.c
@@ -7,7 +7,7 @@
 #include "code_800558C.h"
 #include "graphics_memory.h"
 #include "code_800C9CC.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "input.h"
 #include "items.h"
 #include "memory.h"
@@ -234,7 +234,7 @@ static void sub_8037400(void)
     r6 = NULL;
     r5 = NULL;
     sub_8037810();
-    sub_8011830();
+    StopBGMResetSoundEffectCounters();
     sUnknown_203B35C->linkStatus = sub_8037B28(sUnknown_203B35C->unk0);
     if (sUnknown_203B35C->linkStatus == COMMS_GOOD) {
         switch (sUnknown_203B35C->unk0) {
diff --git a/src/party_list_menu.c b/src/party_list_menu.c
index 0942f28f1..3c9ca560b 100644
--- a/src/party_list_menu.c
+++ b/src/party_list_menu.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "constants/dungeon.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801B3C0.h"
 #include "code_801EE10.h"
 #include "code_801EE10_mid.h"
diff --git a/src/pelipper_board.c b/src/pelipper_board.c
index b6725d973..3818224c8 100644
--- a/src/pelipper_board.c
+++ b/src/pelipper_board.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "structs/menu.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_802DE84.h"
 #include "code_803B050.h"
 #include "code_80958E8.h"
diff --git a/src/personality_test2.c b/src/personality_test2.c
index 6a097fcc4..625210cac 100644
--- a/src/personality_test2.c
+++ b/src/personality_test2.c
@@ -4,7 +4,7 @@
 #include "constants/emotions.h"
 #include "constants/input.h"
 #include "constants/type.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "input.h"
 #include "memory.h"
 #include "menu_input.h"
diff --git a/src/pokemon_news1.c b/src/pokemon_news1.c
index c95c43d8d..2799db4ff 100644
--- a/src/pokemon_news1.c
+++ b/src/pokemon_news1.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/input.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_80958E8.h"
 #include "input.h"
 #include "pokemon_mail.h"
diff --git a/src/pokemon_news2.c b/src/pokemon_news2.c
index af472f38a..b0770797b 100644
--- a/src/pokemon_news2.c
+++ b/src/pokemon_news2.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "game_options.h"
 #include "input.h"
 #include "memory.h"
diff --git a/src/pokemon_news3.c b/src/pokemon_news3.c
index b0b8b739a..1d547a5aa 100644
--- a/src/pokemon_news3.c
+++ b/src/pokemon_news3.c
@@ -4,7 +4,7 @@
 #include "constants/mailbox.h"
 #include "structs/str_802C39C.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_803B050.h"
 #include "code_80958E8.h"
 #include "input.h"
diff --git a/src/post_office_guide2.c b/src/post_office_guide2.c
index 953209301..ac15c3e7b 100644
--- a/src/post_office_guide2.c
+++ b/src/post_office_guide2.c
@@ -3,7 +3,7 @@
 #include "constants/mailbox.h"
 #include "constants/wonder_mail.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_8094F88.h"
 #include "code_80958E8.h"
 #include "code_80972F4.h"
diff --git a/src/save.c b/src/save.c
index 23f11a8e4..5d42dbda5 100644
--- a/src/save.c
+++ b/src/save.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "string_format.h"
 #include "code_8097670.h"
 #include "event_flag.h"
@@ -404,7 +404,7 @@ u32 sub_8012240(void)
     s32 status;
     struct unk_struct *r5 = MemoryAlloc(sizeof(struct unk_struct), 5);
     MemoryFill8(r5, 0xFF, 0x4);
-    sub_8011830();
+    StopBGMResetSoundEffectCounters();
     status = WriteFlashData(0x1F, (u8 *)r5, sizeof(struct unk_struct));
     StartBGMusic();
     MemoryFree(r5);
diff --git a/src/string_format.c b/src/string_format.c
index 783ccbd1b..2bd036f22 100644
--- a/src/string_format.c
+++ b/src/string_format.c
@@ -3,7 +3,7 @@
 #include "constants/input.h"
 #include "bg_palette_buffer.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "event_flag.h"
 #include "game_options.h"
 #include "input.h"
@@ -25,7 +25,7 @@ void sub_80140DC(void)
     pos.x = 200;
     pos.y = 128;
     SetSavingIconCoords(&pos);
-    sub_8011830();
+    StopBGMResetSoundEffectCounters();
 }
 
 void sub_80140F8(void)
@@ -35,7 +35,7 @@ void sub_80140F8(void)
     pos.x = 188;
     pos.y = 64;
     SetSavingIconCoords(&pos);
-    sub_8011830();
+    StopBGMResetSoundEffectCounters();
 }
 
 void sub_8014114(void) {
@@ -90,7 +90,6 @@ static const WindowTemplate gUnknown_80D48DC = {
 
 extern void DisplayMonPortraitSprite(s32 a0, const u8 *compressedData, s32 a2);
 extern void sub_80073E0(s32 a0);
-extern void sub_8011A04(void);
 
 static void sub_8014A88(void);
 static bool8 sub_8014B94(void);
diff --git a/src/thank_you_wonder_mail.c b/src/thank_you_wonder_mail.c
index 23e314901..cec89bf2e 100644
--- a/src/thank_you_wonder_mail.c
+++ b/src/thank_you_wonder_mail.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "constants/communication_error_codes.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801B3C0.h"
 #include "code_801C8C4.h"
 #include "code_802F204.h"
@@ -1289,7 +1289,7 @@ void UpdateThankYouMailText(void)
         break;
     case THANK_YOU_MAIL_COMMS_FINISHED:
         sUnknown_203B2C4->linkError = COMMS_GOOD;
-        sub_8011830();
+        StopBGMResetSoundEffectCounters();
         linkStatus = sub_8037B28(sUnknown_203B2C4->unk40);
         sUnknown_203B2C4->linkError = linkStatus;
         if (linkStatus == COMMS_GOOD)
diff --git a/src/trade_items_menu.c b/src/trade_items_menu.c
index 0c2cb5327..91f4dab29 100644
--- a/src/trade_items_menu.c
+++ b/src/trade_items_menu.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/communication_error_codes.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801B3C0.h"
 #include "code_801C8C4.h"
 #include "cpu.h"
@@ -539,7 +539,7 @@ void sub_8036B28(void)
         sTradeItemsMenu->unk24C = tradeItemZeroed;
       }
 
-        sub_8011830();
+        StopBGMResetSoundEffectCounters();
         linkStatus = sub_8037B28(sTradeItemsMenu->itemMode);
         sTradeItemsMenu->linkStatus = linkStatus;
         if(linkStatus == COMMS_GOOD){
diff --git a/src/wigglytuff_shop1.c b/src/wigglytuff_shop1.c
index 755f9575d..45d7a4c36 100644
--- a/src/wigglytuff_shop1.c
+++ b/src/wigglytuff_shop1.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "constants/input.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "event_flag.h"
 #include "friend_area.h"
 #include "input.h"
diff --git a/src/wigglytuff_shop2.c b/src/wigglytuff_shop2.c
index aff9e4615..dd17df216 100644
--- a/src/wigglytuff_shop2.c
+++ b/src/wigglytuff_shop2.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "common_strings.h"
 #include "exclusive_pokemon.h"
 #include "friend_area.h"
diff --git a/src/wigglytuff_shop3.c b/src/wigglytuff_shop3.c
index a5f8cf327..5e545eab6 100644
--- a/src/wigglytuff_shop3.c
+++ b/src/wigglytuff_shop3.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_8023144.h"
 #include "code_8099360.h"
 #include "common_strings.h"
diff --git a/src/wonder_mail.c b/src/wonder_mail.c
index bbc83afd6..816662a19 100644
--- a/src/wonder_mail.c
+++ b/src/wonder_mail.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/communication_error_codes.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "friend_list.h"
 #include "code_8024458.h"
 #include "code_8094F88.h"
@@ -508,7 +508,7 @@ void sub_8028348(void)
             break;
         case FRIEND_RESCUE_COMMUNICATING:
             sUnknown_203B2C0->linkError = COMMS_GOOD;
-            sub_8011830();
+            StopBGMResetSoundEffectCounters();
             linkError = sub_8037B28(sUnknown_203B2C0->unk40);
             sUnknown_203B2C0->linkError = linkError;
             if(linkError == COMMS_GOOD)
diff --git a/src/wonder_mail_4.c b/src/wonder_mail_4.c
index c207d784b..2379f86f6 100644
--- a/src/wonder_mail_4.c
+++ b/src/wonder_mail_4.c
@@ -4,7 +4,7 @@
 #include "constants/wonder_mail.h"
 #include "structs/str_802C39C.h"
 #include "structs/struct_sub80095e4.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_8094F88.h"
 #include "input.h"
 #include "items.h"
diff --git a/src/wonder_mail_5.c b/src/wonder_mail_5.c
index eb403c4f7..edb472e4b 100644
--- a/src/wonder_mail_5.c
+++ b/src/wonder_mail_5.c
@@ -4,7 +4,7 @@
 #include "constants/wonder_mail.h"
 #include "structs/str_802C39C.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_8094F88.h"
 #include "dungeon_info.h"
 #include "input.h"
diff --git a/src/wonder_mail_802C10C.c b/src/wonder_mail_802C10C.c
index 3ab84a377..89927c4f7 100644
--- a/src/wonder_mail_802C10C.c
+++ b/src/wonder_mail_802C10C.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "globaldata.h"
 #include "constants/input.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_803B050.h"
 #include "code_80958E8.h"
 #include "input.h"
diff --git a/src/wonder_mail_802C4C8.c b/src/wonder_mail_802C4C8.c
index cfa857a7e..ddedd5b51 100644
--- a/src/wonder_mail_802C4C8.c
+++ b/src/wonder_mail_802C4C8.c
@@ -3,7 +3,7 @@
 #include "constants/input.h"
 #include "structs/str_802C39C.h"
 #include "structs/str_wonder_mail.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_803B050.h"
 #include "code_80958E8.h"
 #include "input.h"
diff --git a/src/wonder_mail_802C860.c b/src/wonder_mail_802C860.c
index e3c937afb..312088dea 100644
--- a/src/wonder_mail_802C860.c
+++ b/src/wonder_mail_802C860.c
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "globaldata.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_802DE84.h"
 #include "code_803B050.h"
 #include "code_80958E8.h"
diff --git a/src/wonder_mail_802CDD4.c b/src/wonder_mail_802CDD4.c
index d55e2b5c6..4166e777d 100644
--- a/src/wonder_mail_802CDD4.c
+++ b/src/wonder_mail_802CDD4.c
@@ -4,7 +4,7 @@
 #include "structs/str_802C39C.h"
 #include "structs/str_wonder_mail.h"
 #include "structs/struct_sub80095e4.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_803B050.h"
 #include "input.h"
 #include "memory.h"
diff --git a/src/wonder_mail_main_menu.c b/src/wonder_mail_main_menu.c
index 756137c27..08aa6e9e5 100644
--- a/src/wonder_mail_main_menu.c
+++ b/src/wonder_mail_main_menu.c
@@ -2,7 +2,7 @@
 #include "globaldata.h"
 #include "constants/communication_error_codes.h"
 #include "constants/wonder_mail.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "code_801B3C0.h"
 #include "code_801C8C4.h"
 #include "code_803B050.h"
@@ -514,7 +514,7 @@ void WonderMailMainMenuCallback(void)
         break;
     case 9:
         gUnknown_203B3E8->wonderMailStatus = COMMS_GOOD;
-        sub_8011830();
+        StopBGMResetSoundEffectCounters();
         linkStatus = sub_8037B28(gUnknown_203B3E8->unk24C);
         gUnknown_203B3E8->wonderMailStatus = linkStatus;
         if (linkStatus == COMMS_GOOD) {
diff --git a/src/world_map.c b/src/world_map.c
index dc6acecd5..7665fe396 100644
--- a/src/world_map.c
+++ b/src/world_map.c
@@ -7,7 +7,7 @@
 #include "graphics_memory.h"
 #include "code_800C9CC.h"
 #include "code_800D090.h"
-#include "code_80118A4.h"
+#include "music_util.h"
 #include "world_map_sound.h"
 #include "decompress_at.h"
 #include "decompress_sir.h"
@@ -417,7 +417,7 @@ static void WorldMap_RunFrameActions(void)
     nullsub_24();
     DoScheduledMemCopies();
     xxx_call_update_bg_sound_input();
-    sub_8011860();
+    UpdateSoundEffectCounters();
     ResetSprites(FALSE);
 }