diff --git a/include/common.h b/include/common.h
index 1a5809d..19ab19b 100644
--- a/include/common.h
+++ b/include/common.h
@@ -93,7 +93,7 @@ typedef struct {
     /* 0x20 */ s32 field_0x20;
     /* 0x24 */ unsigned long handle;
     /* 0x28 */ s32 field_0x28;
-    /* 0x2C */ s32 field_0x2c;
+    /* 0x2C */ s32 index;
     /* 0x30 */ s32 field_0x30;
     /* 0x34 */ s32 field_0x34;
     /* 0x38 */ s32 field_0x38;
diff --git a/linker_scripts/symbols/addr.txt b/linker_scripts/symbols/addr.txt
index 183c92e..13c4e3d 100644
--- a/linker_scripts/symbols/addr.txt
+++ b/linker_scripts/symbols/addr.txt
@@ -980,6 +980,7 @@ __read_u32_le = 0x8007A7E0;
 
 __load_song = 0x800EA488; // rom:0x3FA18
 __SONG_VOLUME = 0x800EB2E0;
+__SONG_REVERB = 0x800EB2E4;
 __SONG_SOURCE_START = 0x800EB4F0;
 __SONG_SOURCE_END = 0x800EB4F4;
 
diff --git a/src/main.c b/src/main.c
index f9c03c5..b9e404a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -456,13 +456,13 @@ INCLUDE_ASM(const s32, "main", func_80073CB0);
 /* 42D8 80073ED8 */
 void func_80073ED8(void) {
     if (D_800A81F4 == 0) {
-        __MAYBE_SONG_800EB0B0.field_0x2c = 0;
-        __MAYBE_SONG_800EB100.field_0x2c = 0;
-        __MAYBE_SONG_800EB150.field_0x2c = 0;
-        __MAYBE_SONG_800EB1A0.field_0x2c = 0;
-        __MAYBE_SONG_800EB1F0.field_0x2c = 0;
-        __MAYBE_SONG_800EB240.field_0x2c = 0;
-        __MAYBE_SONG_800EB290.field_0x2c = 0;
+        __MAYBE_SONG_800EB0B0.index = 0;
+        __MAYBE_SONG_800EB100.index = 0;
+        __MAYBE_SONG_800EB150.index = 0;
+        __MAYBE_SONG_800EB1A0.index = 0;
+        __MAYBE_SONG_800EB1F0.index = 0;
+        __MAYBE_SONG_800EB240.index = 0;
+        __MAYBE_SONG_800EB290.index = 0;
         MusStop(MUSFLAG_SONGS | MUSFLAG_EFFECTS, 12);
         D_800A81F4 = 12;
         D_800A81F8 = nuScRetraceCounter;
@@ -478,7 +478,7 @@ void __initialize_song_mem(void) {
 
     mask = osSetIntMask(OS_IM_NONE);
     for(count = 0; count < 7; count++) {        
-        __MAYBE_SONG_ARRAY_800A8218[count]->field_0x2c = 0;
+        __MAYBE_SONG_ARRAY_800A8218[count]->index = 0;
         __MAYBE_SONG_ARRAY_800A8218[count]->field_0x30 = 0;
         __MAYBE_SONG_ARRAY_800A8218[count]->field_0x34 = 0;
         __MAYBE_SONG_ARRAY_800A8218[count]->field_0x38 = 0;
diff --git a/src/segment_song/_ob_knotty_chess.c b/src/segment_song/_ob_knotty_chess.c
index fc6fca2..01b5b73 100644
--- a/src/segment_song/_ob_knotty_chess.c
+++ b/src/segment_song/_ob_knotty_chess.c
@@ -47,7 +47,7 @@ void func_800EA3BC(SomethingMusic* arg0) {
     arg0->field_0x8 = 0;
     arg0->field_0xc = 0;
 
-    arg0->field_0x2c = temp_v0;
+    arg0->index = temp_v0;
     arg0->field_0x30 = temp_v1;
     arg0->field_0x34 = temp_a1;
 }
@@ -71,10 +71,10 @@ void func_800EA3E4(SomethingMusic* arg0) {
             arg0->field_0x3c = 3;
         }
         arg0->field_0x38 = 2;
-        arg0->field_0x40 = arg0->field_0x2c;
+        arg0->field_0x40 = arg0->index;
         return;
     }
-    arg0->field_0x40 = arg0->field_0x2c;
+    arg0->field_0x40 = arg0->index;
 }
 
 INCLUDE_ASM(const s32, "segment_song/_ob_knotty_chess", __load_song);
@@ -94,8 +94,8 @@ void func_800EA568(SomethingMusic* arg0) {
     
     arg0->field_0x28 = arg0->handle;
     MusPtrBankSetSingle(&D_80104710);
-    arg0->handle = MusStartEffect(arg0->field_0x2c - 1);
-    arg0->field_0x20 = arg0->field_0x2c;
+    arg0->handle = MusStartEffect(arg0->index - 1);
+    arg0->field_0x20 = arg0->index;
 }
 
 INCLUDE_ASM(const s32, "segment_song/_ob_knotty_chess", func_800EA604);