diff --git a/include/audio.h b/include/audio.h
index 0f1a1b40..ad600283 100644
--- a/include/audio.h
+++ b/include/audio.h
@@ -1,6 +1,8 @@
+#ifndef AUDIO_H
+#define AUDIO_H
 
 typedef enum {
-    NONE,
+    SFX_NONE,
     BGM_CASTLE_TOURNAMENT,
     BGM_VAATI_MOTIF,
     BGM_TITLE_SCREEN,
@@ -210,6 +212,8 @@ typedef enum {
     SFX_PLY_SHRINKING = 0x16F,
     SFX_PLY_GROW,
 
+    SFX_EZLO_UI = 0x173,
+
     SFX_LAVA_TILE_STEP = 0x17B,
     SFX_LAVA_TILE_WOBBLE,
     SFX_LAVA_TILE_SINK,
@@ -240,4 +244,18 @@ typedef enum {
     SFX_VO_CUCCO3,
     SFX_VO_CUCCO4,
     SFX_VO_CUCCO5,
-} Sound;
\ No newline at end of file
+
+    SND_STOP_ALL = 0x80010000,
+    SONG_VOL_ZERO = 0x80020000,
+    SND_VOL_RESET_ALL = 0x80030000,
+    SND_VSYNC_OFF = 0x80040000,
+    SONG_STOP = 0x80050000,
+    SND_VSYNC_ON = 0x80060000,
+    SONG_VOL_FADE_OUT = 0x80080000,
+    SONG_VOL_RESET = 0x800B0000,
+    SONG_VOL_CHAN1_SILENT = 0x800D0000,
+    SONG_VOL_CHAN1_RESET = 0x800E0000,
+    SONG_RESET_UNK = 0x80100000,
+} Sound;
+
+#endif // AUDIO_H
diff --git a/include/fileScreen.h b/include/fileScreen.h
index b5782093..629dae40 100644
--- a/include/fileScreen.h
+++ b/include/fileScreen.h
@@ -1,6 +1,7 @@
 #ifndef FILESELECT_H
 #define FILESELECT_H
 
+#include "audio.h"
 #include "global.h"
 #include "functions.h"
 #include "main.h"
diff --git a/include/flags.h b/include/flags.h
index 85e6937e..c68be93e 100644
--- a/include/flags.h
+++ b/include/flags.h
@@ -29,7 +29,7 @@ extern u32 gGlobalFlags;
 extern u32 gRoomFlags;
 
 enum {
-    NONE,
+    FLAG_NONE,
     /*0x01*/ LV0_CLEAR,           /*                             */
     /*0x02*/ LV1_CLEAR,           /*                             */
     /*0x03*/ LV2_CLEAR,           /*                             */
diff --git a/src/enemy/gyorgMale.c b/src/enemy/gyorgMale.c
index 330e68b8..c37838f9 100644
--- a/src/enemy/gyorgMale.c
+++ b/src/enemy/gyorgMale.c
@@ -164,12 +164,12 @@ void sub_0804696C(Entity* this) {
         this->nonPlanarMovement = 0x100;
         this->spriteOrientation.flipY = 3;
         this->spriteRendering.b3 = 3;
-        SoundReq(0x2e);
+        SoundReq(BGM_BOSS_THEME);
     }
     if (this->actionDelay) {
         if (gRoomControls.roomOriginY + 0x258 > this->y.HALF.HI) {
             this->actionDelay = 0;
-            SoundReq(0xf7);
+            SoundReq(SFX_APPARATE);
         }
     }
 }
diff --git a/src/ezloCap.c b/src/ezloCap.c
index fce6880f..4272564f 100644
--- a/src/ezloCap.c
+++ b/src/ezloCap.c
@@ -1,3 +1,4 @@
+#include "audio.h"
 #include "global.h"
 #include "entity.h"
 #include "functions.h"
@@ -159,7 +160,7 @@ void sub_0806DAE8(Entity* this) {
             break;
     }
 
-    SoundReq(0xcd);
+    SoundReq(SFX_TASK_COMPLETE);
 }
 
 // Unknown param_2 struct
diff --git a/src/ezloNag.c b/src/ezloNag.c
index 7d537a44..51628171 100644
--- a/src/ezloNag.c
+++ b/src/ezloNag.c
@@ -1,3 +1,4 @@
+#include "audio.h"
 #include "global.h"
 #include "entity.h"
 #include "functions.h"
@@ -24,8 +25,6 @@ typedef struct {
     u8 unk13;
 } Element;
 
-///////////////////////////////////////////////////////////////
-
 extern void sub_0805ECEC(u32, u32, u32, u32);
 extern void sub_0801CAD0(Element*);
 
@@ -99,7 +98,7 @@ void sub_0801CF18(Element* arg0) {
         arg0->unk4 = 2;
         arg0->unk1 = 8;
         gUnk_0200AF00.ezloNagFuncIndex = 3;
-        SoundReq(0x173);
+        SoundReq(SFX_EZLO_UI);
     }
 }
 
diff --git a/src/fileScreen.c b/src/fileScreen.c
index 15280b3d..85fe12ba 100644
--- a/src/fileScreen.c
+++ b/src/fileScreen.c
@@ -216,7 +216,7 @@ static void HandleFileScreenEnter(void) {
     gScreen.controls.alphaBlend = BLDALPHA_BLEND(15, 10);
     gUnk_02024490.unk0 = 1;
     gMain.funcIndex = 1;
-    SoundReq(0x7);
+    SoundReq(BGM_FILE_SELECT);
     DoFade(4, 8);
 }
 
@@ -438,14 +438,14 @@ void sub_08050940(void) {
 
     if (gUnk_02032EC0.lastState != mode) {
         SetFileSelectState(mode);
-        SoundReq(0x6A);
+        SoundReq(SFX_TEXTBOX_SELECT);
     }
 
     row_idx = (row_idx + num_rows) % num_rows;
     if (gUnk_02019EE0.unk6 != row_idx) {
         gUnk_02019EE0.unk6 = row_idx;
         sub_08050AFC(row_idx);
-        SoundReq(0x69);
+        SoundReq(SFX_TEXTBOX_CHOICE);
     }
 
     if (gUnk_02019EE0.saveStatus[gUnk_02019EE0.unk6] == SAVE_VALID) {
@@ -589,14 +589,14 @@ void sub_08050C54(void) {
         case A_BUTTON:
         case START_BUTTON:
             if (column_idx == 0) {
-                SoundReq(0x80080000);
+                SoundReq(SONG_VOL_FADE_OUT);
             }
             gMenu.transitionTimer = 0xf;
             sub_080A7114(1);
-            SoundReq(0x6a);
+            SoundReq(SFX_TEXTBOX_SELECT);
             break;
         case B_BUTTON:
-            SoundReq(0x6c);
+            SoundReq(SFX_MENU_CANCEL);
             SetFileSelectState(STATE_NONE);
             break;
         case DPAD_LEFT:
@@ -614,7 +614,7 @@ void sub_08050C54(void) {
     }
     if (gMenu.column_idx != column_idx) {
         gMenu.column_idx = column_idx;
-        SoundReq(0x69);
+        SoundReq(SFX_TEXTBOX_CHOICE);
     }
 }
 
@@ -667,7 +667,7 @@ void sub_08050DE4(void) {
             break;
         case A_BUTTON:
         case START_BUTTON:
-            SoundReq(0x6a);
+            SoundReq(SFX_TEXTBOX_SELECT);
             if (gMenu.field_0x4 != row_idx) {
                 sub_080A7114(2);
                 CreateDialogBox(8, 0);
@@ -678,7 +678,7 @@ void sub_08050DE4(void) {
         case B_BUTTON:
             row_idx = gMenu.field_0x4;
             gUnk_02000000->gameLanguage = gMenu.field_0x4;
-            SoundReq(0x6c);
+            SoundReq(SFX_MENU_CANCEL);
             SetFileSelectState(STATE_NONE);
             break;
     }
@@ -692,7 +692,7 @@ void sub_08050DE4(void) {
     }
     if (gUnk_02000000->gameLanguage != row_idx) {
         gUnk_02000000->gameLanguage = row_idx;
-        SoundReq(0x69);
+        SoundReq(SFX_TEXTBOX_CHOICE);
     }
 }
 
@@ -765,13 +765,13 @@ NONMATCH("asm/non_matching/fileScreen/sub_08050EF4.inc", void sub_08050EF4(void)
         case 3:
             gUnk_02019EE0.saves[gUnk_02019EE0.unk6].messageSpeed = gUnk_02019EE0.unk4;
             gUnk_02019EE0.saves[gUnk_02019EE0.unk6].brightnessPref = gUnk_02019EE0.unk5;
-            SoundReq(0x6c);
+            SoundReq(SFX_MENU_CANCEL);
             sub_080A7114(mode);
             SetActiveSave(gUnk_02019EE0.unk6);
             break;
         case 2:
             CreateDialogBox(8, 0);
-            SoundReq(0x6a);
+            SoundReq(SFX_TEXTBOX_SELECT);
         default:
         case 1:
             sub_080A7114(mode);
@@ -780,11 +780,11 @@ NONMATCH("asm/non_matching/fileScreen/sub_08050EF4.inc", void sub_08050EF4(void)
         case 0:
             if (gMenu.column_idx != column_idx) {
                 gMenu.column_idx = column_idx;
-                SoundReq(0x69);
+                SoundReq(SFX_TEXTBOX_CHOICE);
             } else if (option != *p_option) {
                 *p_option = option;
                 LoadOptionsFromSave(gUnk_02019EE0.unk6);
-                SoundReq(0x69);
+                SoundReq(SFX_TEXTBOX_CHOICE);
             }
             break;
     }
@@ -842,7 +842,7 @@ void sub_08051358(void) {
     if (gMenu.focusCoords[0] != 0x0b || gMenu.focusCoords[1] != 0x5) {
         gMenu.focusCoords[1] = 0x5;
         gMenu.focusCoords[0] = 0xb;
-        SoundReq(0x67);
+        SoundReq(SFX_TEXTBOX_NEXT);
     }
 }
 
@@ -919,7 +919,7 @@ void sub_08051480(u32 c) {
 
     gMenu.unk13 = idx + 1;
     gSave.playerName[idx] = c;
-    sub_08051574(0x6b);
+    sub_08051574(SFX_6B);
 }
 
 u32 sub_080514BC(u32 a1) {
@@ -939,9 +939,8 @@ u32 sub_080514BC(u32 a1) {
     }
 
     idx = gMenu.unk13;
-    if (idx == 0) {
+    if (idx == 0)
         return 0;
-    }
 
     c = gSave.playerName[idx - 1];
     if (c - 0xa4 < 0x29) {
@@ -955,11 +954,10 @@ u32 sub_080514BC(u32 a1) {
             case 0xE:
                 return c;
             case 0xF:
-                if (c < 0xc3) {
+                if (c < 0xc3)
                     return 0;
-                } else {
+                else
                     return c + 10;
-                }
             default:
                 return c;
         }
@@ -984,9 +982,8 @@ u32 sub_080514BC(u32 a1) {
             case 0xe:
                 return c - 0x33;
             case 0xf:
-                if (c > 0xf5) {
+                if (c > 0xf5)
                     return c - 0x29;
-                }
         }
     }
 
@@ -1025,10 +1022,10 @@ void sub_080515D4(void) {
             if (column_idx == 1) {
                 CreateDialogBox(4, 0);
                 sub_080A7114(2);
-                SoundReq(0x6a);
+                SoundReq(SFX_TEXTBOX_SELECT);
             } else {
                 SetFileSelectState(0);
-                SoundReq(0x6c);
+                SoundReq(SFX_MENU_CANCEL);
             }
             break;
         case DPAD_LEFT:
@@ -1041,7 +1038,7 @@ void sub_080515D4(void) {
 
     if (gMenu.column_idx != column_idx) {
         gMenu.column_idx = column_idx;
-        SoundReq(0x69);
+        SoundReq(SFX_TEXTBOX_CHOICE);
     }
 }
 
@@ -1122,20 +1119,20 @@ void sub_080517EC(void) {
             if (gUnk_02019EE0.unk7 < 3) {
                 CreateDialogBox(2, 0);
                 sub_080A7114(2);
-                SoundReq(0x6a);
+                SoundReq(SFX_TEXTBOX_SELECT);
                 break;
             }
             // fallthrough
         case B_BUTTON:
             gUnk_02019EE0.unk7 = 4;
-            SoundReq(0x6c);
+            SoundReq(SFX_MENU_CANCEL);
             SetFileSelectState(0);
             break;
     }
     temp = sub_080517B4(delta);
     if (temp != gUnk_02019EE0.unk7) {
         gUnk_02019EE0.unk7 = temp;
-        SoundReq(0x69);
+        SoundReq(SFX_TEXTBOX_CHOICE);
     }
 }
 
diff --git a/src/game.c b/src/game.c
index b56f4836..b7a1f757 100644
--- a/src/game.c
+++ b/src/game.c
@@ -105,13 +105,13 @@ void sub_080521A0(void) {
                         }
                         gMenu.transitionTimer = 0x3c;
                         sub_080A7114(temp2);
-                        SoundReq(0x6a);
+                        SoundReq(SFX_TEXTBOX_SELECT);
                         break;
                 }
                 if (gMenu.field_0x3 != temp) {
                     gMenu.field_0x3 = temp;
                     sub_08052418(0, temp);
-                    SoundReq(0x69);
+                    SoundReq(SFX_TEXTBOX_CHOICE);
                 }
                 break;
             }
@@ -170,7 +170,7 @@ void sub_080522F4(void) {
                         break;
                     case 0x1:
                         sub_080A7114(2);
-                        SoundReq(0x6a);
+                        SoundReq(SFX_TEXTBOX_SELECT);
                         if (temp == 0) {
                             DoFade(5, 8);
                         } else {
@@ -181,7 +181,7 @@ void sub_080522F4(void) {
                 if (gMenu.field_0x3 != temp) {
                     gMenu.field_0x3 = temp;
                     sub_08052418(1, temp);
-                    SoundReq(0x69);
+                    SoundReq(SFX_TEXTBOX_CHOICE);
                 }
             }
             break;
diff --git a/src/intro.c b/src/intro.c
index 9bc22124..4480e983 100644
--- a/src/intro.c
+++ b/src/intro.c
@@ -1,3 +1,4 @@
+#include "audio.h"
 #include "global.h"
 #include "menu.h"
 #include "main.h"
@@ -158,7 +159,7 @@ static void HandleTitlescreen(void) {
                 UpdateSwordBgAffineData();
             }
             sub_080A3210();
-            SoundReq(3); // fanfare
+            SoundReq(BGM_TITLE_SCREEN);
             DoFade(6, 8);
             break;
         case 1:
@@ -182,12 +183,12 @@ static void HandleTitlescreen(void) {
             advance = GetAdvanceState();
             if (advance != ADVANCE_NONE) {
                 if (advance == ADVANCE_KEY_PRESSED) {
-                    SoundReq(0x6a);
+                    SoundReq(SFX_TEXTBOX_SELECT);
                 } else {
                     advance = ADVANCE_NONE;
                 }
                 AdvanceIntroSequence(advance);
-                SoundReq(0x80080000);
+                SoundReq(SONG_VOL_FADE_OUT);
             }
             UpdatePressStartIcon();
             if ((gIntroState.timer & 0x20) == 0) {
@@ -242,7 +243,7 @@ static void HandleJapaneseTitlescreenAnimationIntro(void) {
                     gScreen.bg.bg1Control = 0xc09;
                     gFadeControl.field_0x4 = 0x40;
                     DoFade(6, 0x10);
-                    SoundReq(0xf8);
+                    SoundReq(SFX_F8);
                 }
             }
             break;
@@ -272,7 +273,7 @@ static void HandleTitlescreenAnimationIntro(void) {
             if (!gFadeControl.active) {
                 gIntroState.subState = 1;
                 gScreen.lcd.displayControl |= DISPCNT_BG2_ON;
-                SoundReq(0xF6);
+                SoundReq(SFX_EVAPORATE);
             }
             break;
         case 1:
@@ -291,7 +292,7 @@ static void HandleTitlescreenAnimationIntro(void) {
                 gIntroState.subState++;
                 CreateObject(0xBD, 0, 0);
                 DoFade(6, 16);
-                SoundReq(0xF8);
+                SoundReq(SFX_F8);
             }
             break;
         default:
diff --git a/src/item14.c b/src/item14.c
index 7ca56f53..acf87a63 100644
--- a/src/item14.c
+++ b/src/item14.c
@@ -1,4 +1,5 @@
 #include "entity.h"
+#include "audio.h"
 #include "functions.h"
 #include "player.h"
 #include "room.h"
@@ -30,7 +31,7 @@ void sub_0805FBE8(Entity* this) {
     sub_0801766C(this);
     sub_0806F69C(this);
     sub_0805FC74(this);
-    SoundReq(0x13f);
+    SoundReq(SFX_ITEM_SWORD_BEAM);
 }
 
 void sub_0805FC74(Entity* this) {
@@ -39,7 +40,7 @@ void sub_0805FC74(Entity* this) {
     if (--*(int*)&this->field_0x6c != -1) {
         GetNextFrame(this);
         sub_0806F69C(this);
-        ++this->actionDelay;
+        this->actionDelay++;
         if (this->type2 == 0) {
             sub_0800451C(this);
         }
diff --git a/src/main.c b/src/main.c
index eb0d9df1..ba938c55 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,3 +1,4 @@
+#include "audio.h"
 #include "global.h"
 #include "functions.h"
 #include "structures.h"
@@ -201,7 +202,7 @@ u32 sub_08056134(void) {
 }
 
 void InitDMA() {
-    SoundReq(0x80040000);
+    SoundReq(SND_VSYNC_OFF);
     gScreen._6d = gScreen._6c;
     gScreen._6c = 0;
 
@@ -214,7 +215,7 @@ void InitDMA() {
 }
 
 void sub_08056208() {
-    SoundReq(0x80060000);
+    SoundReq(SND_VSYNC_ON);
     gScreen._6c = gScreen._6d;
     gScreen._6d = 0;
 }
diff --git a/src/manager/manager15.c b/src/manager/manager15.c
index 87135c56..5e628829 100644
--- a/src/manager/manager15.c
+++ b/src/manager/manager15.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "flags.h"
 #include "screen.h"
 #include "manager.h"
@@ -80,7 +81,7 @@ void sub_0805A370(Manager15* this) {
     if (this->manager.unk_0d) {
         LoadRoomEntityList(&gUnk_080E4C08);
         this->manager.action = 3;
-        SoundReq(0x80100000);
+        SoundReq(SONG_RESET_UNK);
     }
 }
 
diff --git a/src/manager/manager27.c b/src/manager/manager27.c
index b2e0e15a..feaee671 100644
--- a/src/manager/manager27.c
+++ b/src/manager/manager27.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "flags.h"
 #include "functions.h"
@@ -42,7 +43,7 @@ void sub_0805C894(Entity* this) {
     if (sub_0805C920(this)) {
         this->action = 2;
         this->actionDelay = 1;
-        SoundReq(0x11a);
+        SoundReq(SFX_EM_ARMOS_ON);
     }
 }
 
@@ -58,7 +59,7 @@ void sub_0805C8B4(Entity* this) {
         }
         LoadPaletteGroup(gUnk_08108D20[this->field_0xf]);
         if (this->field_0xf == 0) {
-            SoundReq(0x11a);
+            SoundReq(SFX_EM_ARMOS_ON);
         }
     }
     if (sub_0805C920(this) == 0) {
diff --git a/src/manager/manager30.c b/src/manager/manager30.c
index 8cfde746..ece1698f 100644
--- a/src/manager/manager30.c
+++ b/src/manager/manager30.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "manager.h"
 #include "flags.h"
 #include "functions.h"
@@ -48,13 +49,13 @@ void Manager30_Main(Manager30* this) {
                     case 0x317:
                         // stepped on a red tile again
                         this->manager.action = FAILED;
-                        SoundReq(0x6d);
+                        SoundReq(SFX_MENU_ERROR);
                         break;
                     case 0x318:
                         // stepped on a blue tile
                         // turn the tile into a red tile
                         sub_0807B7D8(0x317, this->player_current_tile, this->manager.unk_0b);
-                        SoundReq(0x6b);
+                        SoundReq(SFX_6B);
                         // decrease the number of remaining tiles and check if we're done
                         if (--this->manager.unk_0e == 0) {
                             this->manager.action = SUCCEEDED;
@@ -89,7 +90,7 @@ void Manager30_Main(Manager30* this) {
                     SetFlag(this->flag_succeeded);
                 }
             } else {
-                SoundReq(0x72);
+                SoundReq(SFX_SECRET);
             }
     }
 }
diff --git a/src/manager/manager5.c b/src/manager/manager5.c
index ec7ee400..4cb39ca8 100644
--- a/src/manager/manager5.c
+++ b/src/manager/manager5.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "manager.h"
 #include "flags.h"
 #include "functions.h"
@@ -71,14 +72,14 @@ void sub_08057BA4(Manager5* this) {
         sub_08057CA4(this, this->unk_28, this->unk_2a);
         sub_0807B7D8(this->unk_30, this->unk_38 | (this->unk_3a << 6), this->unk_3c);
         this->manager.unk_0f++;
-        SoundReq(0x71);
+        SoundReq(SFX_HEART_GET);
     } else {
         if (!this->manager.unk_0f)
             return;
         sub_0807BA8C(this->unk_38 | (this->unk_3a << 6), this->unk_3c);
         sub_08057CA4(this, this->unk_2c, this->unk_2e);
         this->manager.unk_0f--;
-        SoundReq(0x71);
+        SoundReq(SFX_HEART_GET);
     }
 }
 
@@ -95,10 +96,10 @@ void sub_08057C28(Manager5* this) {
             sub_08057CA4(this, this->unk_28, this->unk_2a);
             sub_0807B7D8(this->unk_30, this->unk_38 | (this->unk_3a << 6), this->unk_3c);
             this->manager.unk_0f++;
-            SoundReq(0x71);
+            SoundReq(SFX_HEART_GET);
         } else {
             if (this->unk_30 != 0x323) {
-                SoundReq(0x72);
+                SoundReq(SFX_SECRET);
             }
             DeleteManager(&this->manager);
         }
diff --git a/src/manager/managerC.c b/src/manager/managerC.c
index 72529c2f..f7092e7b 100644
--- a/src/manager/managerC.c
+++ b/src/manager/managerC.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "manager.h"
 #include "flags.h"
 #include "structures.h"
@@ -100,7 +101,7 @@ void sub_080588F8(ManagerC* this) {
                 case 0xf0:
                     this->unk_28 = this->unk_24.HALF.HI;
                     this->manager.unk_0f = 0x2D;
-                    SoundReq(0x8c);
+                    SoundReq(SFX_BARREL_ROLL_STOP);
             }
         }
     } else {
@@ -123,7 +124,7 @@ void sub_080588F8(ManagerC* this) {
             }
             if (ABS_DIFF_GT(this->unk_2c, this->unk_24.WORD, 0x100000)) {
                 this->unk_2c = this->unk_24.WORD;
-                SoundReq(0x8b);
+                SoundReq(SFX_BARREL_ROLL);
             }
         }
     }
@@ -213,7 +214,7 @@ void sub_08058B5C(ManagerC* this, u32 unk1) {
     gScreenTransition.playerStartPos.HALF.x = gUnk_081082E8[unk1 * 3];
     gScreenTransition.playerStartPos.HALF.y = gUnk_081082E8[unk1 * 3 + 1];
     gSave.unk7 = gUnk_081082E8[unk1 * 3 + 2];
-    SoundReq(0x121);
+    SoundReq(SFX_STAIRS);
 }
 
 void sub_08058BC8(ManagerC* this) {
diff --git a/src/npc/cow.c b/src/npc/cow.c
index aeb62982..70674a1f 100644
--- a/src/npc/cow.c
+++ b/src/npc/cow.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "player.h"
 #include "functions.h"
@@ -216,7 +217,7 @@ void sub_0806924C(Entity* ent) {
             Cow_ShowDialogue(ent);
             sub_080791D0();
         }
-        SoundReq(212);
+        SoundReq(SFX_VO_COW);
         ent->interactType = 0;
     }
 }
diff --git a/src/npc/epona.c b/src/npc/epona.c
index a79ccd48..8127eb92 100644
--- a/src/npc/epona.c
+++ b/src/npc/epona.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "textbox.h"
 #include "player.h"
@@ -83,7 +84,7 @@ void sub_08065AA4(Entity* this) {
             sub_08065A50(this);
             sub_080791D0();
         }
-        SoundReq(0xD3);
+        SoundReq(SFX_VO_EPONA);
         this->interactType = 0;
     }
 }
diff --git a/src/npc/simon.c b/src/npc/simon.c
index 35397e80..65270b80 100644
--- a/src/npc/simon.c
+++ b/src/npc/simon.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "functions.h"
 #include "room.h"
@@ -35,7 +36,7 @@ void sub_0806C224(void) {
 void Simon_CreateChest(Entity* this) {
     CreateObjectWithParent(this, 0xf, 0x43, 0);
     SetTileType(0x73, COORD_TO_TILE(this), this->collisionLayer);
-    SoundReq(0x73);
+    SoundReq(SFX_SECRET_BIG);
 }
 
 void sub_0806C280(void) {
diff --git a/src/npc/zelda.c b/src/npc/zelda.c
index 90a40fc0..b284b6cf 100644
--- a/src/npc/zelda.c
+++ b/src/npc/zelda.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "functions.h"
 #include "room.h"
@@ -140,7 +141,7 @@ void sub_08066E80(Entity* ent, u8* param_2) {
                 param_2[0x18]++;
                 ent->field_0x20 = 0x20000;
                 ent->frames.all &= 0xFE;
-                SoundReq(0x7C);
+                SoundReq(SFX_PLY_JUMP);
             }
             break;
         case 2:
diff --git a/src/object/bird.c b/src/object/bird.c
index 2b6f194b..acda3985 100644
--- a/src/object/bird.c
+++ b/src/object/bird.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "flags.h"
 #include "functions.h"
@@ -95,7 +96,7 @@ void sub_0809D0AC(Entity* this) {
         this->height.WORD = 0;
         this->collisionLayer = 1;
         SetLocalFlag(0x45);
-        SoundReq(0x72);
+        SoundReq(SFX_SECRET);
         fx = CreateFx(this, 0x11, 0);
         if (fx != NULL) {
             sub_0806FAD8(this, fx);
diff --git a/src/object/cloud.c b/src/object/cloud.c
index a2637b6b..e7851f07 100644
--- a/src/object/cloud.c
+++ b/src/object/cloud.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "room.h"
 #include "player.h"
@@ -70,7 +71,7 @@ void sub_0809F548(Entity* this) {
 
 void sub_0809F5B0(Entity* this) {
     if (--this->actionDelay == 0) {
-        SoundReq(115);
+        SoundReq(SFX_SECRET_BIG);
         SetGlobalFlag(KUMOTATSUMAKI);
         LoadRoomEntityList(&gUnk_080DD750);
         DeleteThisEntity();
@@ -123,7 +124,7 @@ void sub_0809F69C(Entity* this) {
         this->actionDelay = 30;
         this->action = 4;
         gRoomControls.cameraTarget = &gPlayerEntity;
-        SoundReq(115);
+        SoundReq(SFX_SECRET_BIG);
     }
 }
 
diff --git a/src/object/greatFairy.c b/src/object/greatFairy.c
index e71ddfc6..2140f167 100644
--- a/src/object/greatFairy.c
+++ b/src/object/greatFairy.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "room.h"
 #include "screen.h"
@@ -220,7 +221,7 @@ void GreatFairy_MiniRisingUpdate(Entity* this) {
     this->height.WORD -= 0x8000;
     if (this->height.HALF.HI == -20) {
         this->action = 2;
-        SoundReq(321);
+        SoundReq(SFX_HEART_CONTAINER_SPAWN);
     } else {
         if (((this->height.HALF.HI == -10) && (this->field_0xf == 0)) &&
             (target = GreatFairy_CreateForm(this, DROPLET, 0), target != NULL)) {
@@ -289,7 +290,7 @@ void GreatFairy_DropletInit(Entity* this) {
     this->spriteSettings.b.draw = 1;
     this->height.HALF.HI = 0;
     this->spritePriority.b0 = 5;
-    SoundReq(320);
+    SoundReq(SFX_140);
 }
 
 void GreatFairy_DropletUpdate(Entity* this) {
@@ -328,7 +329,7 @@ void GreatFairy_BigRippleInit(Entity* this) {
     this->actionDelay = 120;
     this->spriteSettings.b.draw = 1;
     this->spritePriority.b0 = 5;
-    SoundReq(249);
+    SoundReq(SFX_TELEPORTER);
 }
 
 void GreatFairy_BigRippleUpdate(Entity* this) {
@@ -520,7 +521,7 @@ void sub_080873D0(Entity* this) {
 void sub_080873FC(void) {
     Entity* ent;
 
-    SoundReq(0xf7);
+    SoundReq(SFX_APPARATE);
     gRoomControls.cameraTarget = NULL;
 
     while (ent = FindEntityInListBySubtype(0x6, 0x1b, 0x6), ent != NULL) {
diff --git a/src/object/heartContainer.c b/src/object/heartContainer.c
index f6858b50..6fad6461 100644
--- a/src/object/heartContainer.c
+++ b/src/object/heartContainer.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "flags.h"
 #include "functions.h"
@@ -54,7 +55,7 @@ static void sub_0808E714(Entity* this) {
         this->action = 3;
         this->field_0x3c |= 0x10;
         sub_0805EC60(this);
-        SoundReq(0x141);
+        SoundReq(SFX_HEART_CONTAINER_SPAWN);
     }
     sub_08080CB4(this);
 }
diff --git a/src/object/itemOnGround.c b/src/object/itemOnGround.c
index 409c1d04..94a0881c 100644
--- a/src/object/itemOnGround.c
+++ b/src/object/itemOnGround.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "flags.h"
 #include "functions.h"
diff --git a/src/object/minecart.c b/src/object/minecart.c
index 53d1ff82..e86c814e 100644
--- a/src/object/minecart.c
+++ b/src/object/minecart.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "functions.h"
 #include "room.h"
@@ -85,7 +86,7 @@ void sub_080917DC(Entity* this) {
                 gPlayerEntity.flags &= 0x7f;
                 ResetPlayer();
                 sub_0807A108();
-                SoundReq(0x7c);
+                SoundReq(SFX_PLY_JUMP);
             }
         } else {
             this->actionDelay = 0;
@@ -153,7 +154,7 @@ void sub_080919AC(Entity* this) {
             }
 
             if (--this->field_0xf == 0xff) {
-                SoundReq(0x7b);
+                SoundReq(SFX_PLY_VO7);
                 this->field_0xf = 0x3c;
             }
 
@@ -182,7 +183,7 @@ void sub_080919AC(Entity* this) {
                         gPlayerEntity.flags |= 0x80;
                         sub_08004168(this);
                         InitAnimationForceUpdate(this, this->animationState + 0xc);
-                        SoundReq(0x78);
+                        SoundReq(SFX_PLY_VO4);
                         SoundReq(0x139);
                         return;
                     case 0x67:
diff --git a/src/object/object49.c b/src/object/object49.c
index 16bf7bb9..0479ce1f 100644
--- a/src/object/object49.c
+++ b/src/object/object49.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "functions.h"
 #include "position.h"
@@ -59,7 +60,7 @@ static void sub_0808F14C(Entity* this) {
     sub_0808F2B0(this);
     if (sub_08003FC4(this, 0x2000) == 0) {
         this->action++;
-        SoundReq(0x84);
+        SoundReq(SFX_WATER_SPLASH);
     }
 }
 
diff --git a/src/object/treeHidingPortal.c b/src/object/treeHidingPortal.c
index 912003b9..9236ce5c 100644
--- a/src/object/treeHidingPortal.c
+++ b/src/object/treeHidingPortal.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "flags.h"
 #include "player.h"
@@ -62,7 +63,7 @@ void sub_0809E8EC(Entity* this) {
     if (--this->actionDelay == 0) {
         SetFlag(this->field_0x86.HWORD);
         sub_08078A90(0);
-        SoundReq(0x73);
+        SoundReq(SFX_SECRET_BIG);
         DeleteThisEntity();
     }
 }
diff --git a/src/object/windcrest.c b/src/object/windcrest.c
index efc11dc4..ffd01ce6 100644
--- a/src/object/windcrest.c
+++ b/src/object/windcrest.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "functions.h"
 #include "save.h"
@@ -27,7 +28,7 @@ void sub_080A2124(Entity* this) {
 }
 
 void Windcrest_Unlock(Entity* this) {
-    SoundReq(0x72);
+    SoundReq(SFX_SECRET);
     gSave.windcrests = gSave.windcrests | 1 << (this->type2 + 0x18);
     CreateFx(this, 0x46, 0);
 }
diff --git a/src/player.c b/src/player.c
index e3038077..5c1e2b66 100644
--- a/src/player.c
+++ b/src/player.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "player.h"
 #include "textbox.h"
@@ -116,8 +117,8 @@ void sub_08070C3C(Entity* this) {
     this->spritePriority.b1 = 0;
     ResetPlayer();
     sub_0807A108();
-    SoundReq(0x7b);
-    SoundReq(0x85);
+    SoundReq(SFX_PLY_VO7);
+    SoundReq(SFX_FALL_HOLE);
 }
 
 void sub_08070CB4(Entity* this) {
@@ -355,8 +356,8 @@ void sub_080710A8(Entity* this) {
 
     this->nonPlanarMovement = 0x100;
     sub_0807A108();
-    SoundReq(0x7c);
-    SoundReq(0x78);
+    SoundReq(SFX_PLY_JUMP);
+    SoundReq(SFX_PLY_VO4);
 }
 
 void sub_08071130(Entity* this) {
@@ -412,7 +413,7 @@ void sub_08071130(Entity* this) {
     this->previousActionFlag++;
     sub_08078F60();
     this->field_0x42 = 0;
-    SoundReq(0x7d);
+    SoundReq(SFX_PLY_LAND);
 }
 
 void sub_08071208(Entity* this) {
diff --git a/src/room.c b/src/room.c
index f400ce7f..b940d37f 100644
--- a/src/room.c
+++ b/src/room.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "entity.h"
 #include "area.h"
 #include "room.h"
@@ -2240,7 +2241,7 @@ void sub_0804CD48(void) {
     if (CheckGlobalFlag(LV1_CLEAR)) {
         LoadRoomEntityList(&gUnk_080DF94C);
     } else {
-        SoundReq(0x80100000);
+        SoundReq(SONG_RESET_UNK);
         gArea.musicIndex = gArea.pMusicIndex;
     }
 }
@@ -2428,7 +2429,7 @@ void sub_0804CED8(void) {
         sub_0807AABC(&gPlayerEntity);
         LoadRoomEntityList(&gUnk_080E1814);
     } else {
-        SoundReq(0x80100000);
+        SoundReq(SONG_RESET_UNK);
         gArea.musicIndex = gArea.pMusicIndex;
     }
 }
@@ -2522,10 +2523,10 @@ void sub_0804CFB0(void) {
 
     if (!CheckFlags(0x31)) {
         if (gScreenTransition.field_0x38 == 0) {
-            SoundReq(0x80100000);
+            SoundReq(SONG_RESET_UNK);
         } else {
             if (gScreenTransition.field_0x39 == 0) {
-                SoundReq(0x80050000);
+                SoundReq(SONG_STOP);
                 sub_08078A90(3);
             }
         }
@@ -2756,12 +2757,11 @@ u32 sub_0804D13C() {
 extern EntityData gUnk_080E49F4;
 
 void sub_0804D140(void) {
-
     sub_0805308C(0x100);
     if (CheckGlobalFlag(LV4_CLEAR)) {
         LoadRoomEntityList(&gUnk_080E49F4);
     } else {
-        SoundReq(0x80100000);
+        SoundReq(SONG_RESET_UNK);
         gArea.musicIndex = gArea.pMusicIndex;
     }
 }
@@ -3090,7 +3090,7 @@ void sub_0804D384(void) {
             sub_08078A90(3);
             LoadRoomEntityList(&gUnk_080E72E4);
             gArea.musicIndex = gArea.pMusicIndex;
-            SoundReq(0x80100000);
+            SoundReq(SONG_RESET_UNK);
         }
     }
 }
@@ -3498,7 +3498,7 @@ u32 sub_0804D6C4() {
 }
 
 void sub_0804D6C8(void) {
-    SoundReq(0x80100000);
+    SoundReq(SONG_RESET_UNK);
     gArea.musicIndex = gArea.pMusicIndex;
 }
 
@@ -4508,7 +4508,7 @@ void sub_0804E3C4() {
         index = 0xE;
     }
     sub_0804B3C4(&gUnk_080F0E1C[index]);
-    SoundReq(0x80100000);
+    SoundReq(SONG_RESET_UNK);
 }
 
 u32 sub_0804E45C() {
@@ -4716,7 +4716,7 @@ extern EntityData gUnk_080F2E2C;
 void sub_0804E6E8(void) {
     if (!CheckGlobalFlag(OUTDOOR)) {
         gArea.musicIndex = gArea.pMusicIndex;
-        SoundReq(0x800b0036);
+        SoundReq(SONG_VOL_RESET | BGM_MINISH_CAP);
     }
     if (!CheckGlobalFlag(START)) {
         LoadRoomEntityList(&gUnk_080F2E2C);
@@ -4733,7 +4733,7 @@ extern EntityData gUnk_080F2EC4;
 void sub_0804E72C(void) {
     if (!CheckGlobalFlag(OUTDOOR)) {
         gArea.musicIndex = gArea.pMusicIndex;
-        SoundReq(0x800b0036);
+        SoundReq(SONG_VOL_RESET | BGM_MINISH_CAP);
     }
     if (!CheckGlobalFlag(START)) {
         LoadRoomEntityList(&gUnk_080F2E94);
@@ -4786,7 +4786,7 @@ void sub_0804E7DC(void) {
     }
     if (!CheckGlobalFlag(OUTDOOR)) {
         gArea.musicIndex = gArea.pMusicIndex;
-        SoundReq(0x800b0036);
+        SoundReq(SONG_VOL_RESET | BGM_MINISH_CAP);
     }
     if ((gPlayerState.flags.all & 8) == 0) {
         LoadRoomEntityList(&gUnk_080F31D8);
diff --git a/src/script.c b/src/script.c
index 494e0ae5..621b1c61 100644
--- a/src/script.c
+++ b/src/script.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "flags.h"
 #include "entity.h"
 #include "area.h"
@@ -1337,7 +1338,7 @@ void sub_0807EFD4(Entity* unk1, ScriptExecutionContext* unk2) {
 }
 
 void sub_0807EFE4(Entity* unk1, ScriptExecutionContext* unk2) {
-    SoundReq(0x80100000);
+    SoundReq(SONG_RESET_UNK);
 }
 
 void sub_0807EFF4(Entity* unk1, ScriptExecutionContext* unk2) {
diff --git a/src/textbox.c b/src/textbox.c
index 8e962960..ee31f8fc 100644
--- a/src/textbox.c
+++ b/src/textbox.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "audio.h"
 #include "room.h"
 #include "entity.h"
 #include "functions.h"
@@ -180,7 +181,7 @@ u32 sub_080565B4(void) {
         gUnk_02022780._89 = 1;
         gUnk_02022780._99 = 1;
         sub_08056F88(gUnk_02022780._3[0], gUnk_02022780._53);
-        SoundReq(0x65);
+        SoundReq(SFX_TEXTBOX_OPEN);
     }
 
     if (sub_08056CC0(1)) {
@@ -195,7 +196,7 @@ u32 sub_080565F8(void) {
         gUnk_02022780._89 = 1;
         gUnk_02022780._99 = 3;
         sub_08056BDC(0);
-        SoundReq(0x66);
+        SoundReq(SFX_TEXTBOX_CLOSE);
     }
 
     if (sub_08056CC0(-1)) {