diff --git a/asm/non_matching/m4a/m4aMPlayImmInit.inc b/asm/non_matching/m4a/m4aMPlayImmInit.inc
deleted file mode 100644
index 56996373..00000000
--- a/asm/non_matching/m4a/m4aMPlayImmInit.inc
+++ /dev/null
@@ -1,61 +0,0 @@
-
-    .syntax unified
-
-    .text
-
-	push {r4, r5, r6, r7, lr}
-	sub sp, #4
-	adds r7, r0, #0
-	ldr r1, [r7, #0x34]
-	ldr r0, _080B0228 @ =0x68736D53
-	cmp r1, r0
-	bne _080B021E
-	adds r0, r1, #1
-	str r0, [r7, #0x34]
-	ldrb r5, [r7, #8]
-	ldr r4, [r7, #0x2c]
-	cmp r5, #0
-	ble _080B021A
-	movs r2, #0x80
-_080B01E0:
-	ldrb r1, [r4]
-	adds r0, r2, #0
-	ands r0, r1
-	cmp r0, #0
-	beq _080B0212
-	movs r6, #0x40
-	adds r0, r6, #0
-	ands r0, r1
-	cmp r0, #0
-	beq _080B0212
-	adds r0, r4, #0
-	str r2, [sp]
-	bl Clear64byte
-	ldr r2, [sp]
-	strb r2, [r4]
-	movs r0, #2
-	strb r0, [r4, #0xf]
-	strb r6, [r4, #0x13]
-	movs r0, #0x16
-	strb r0, [r4, #0x19]
-	adds r1, r4, #0
-	adds r1, #0x24
-	movs r0, #1
-	strb r0, [r1]
-_080B0212:
-	subs r5, #1
-	adds r4, #0x50
-	cmp r5, #0
-	bgt _080B01E0
-_080B021A:
-	ldr r0, _080B0228 @ =0x68736D53
-	str r0, [r7, #0x34]
-_080B021E:
-	add sp, #4
-	pop {r4, r5, r6, r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080B0228: .4byte 0x68736D53
-
-    .syntax divided
diff --git a/asm/non_matching/m4a/m4aSoundVSync.inc b/asm/non_matching/m4a/m4aSoundVSync.inc
deleted file mode 100644
index 52baef8e..00000000
--- a/asm/non_matching/m4a/m4aSoundVSync.inc
+++ /dev/null
@@ -1,54 +0,0 @@
-
-	.syntax unified
-
-	.text
-
-	push {lr}
-	ldr r0, _080B06C4 @ =0x03007FF0
-	ldr r2, [r0]
-	ldr r0, [r2]
-	ldr r1, _080B06C8 @ =0x978C92AD
-	adds r0, r0, r1
-	cmp r0, #1
-	bhi _080B06BE
-	ldrb r0, [r2, #4]
-	subs r0, #1
-	ldrb r1, [r2, #4]
-	strb r0, [r2, #4]
-	ldrb r0, [r2, #4]
-	lsls r0, r0, #0x18
-	cmp r0, #0
-	bgt _080B06BE
-	ldrb r0, [r2, #0xb]
-	ldrb r1, [r2, #4]
-	strb r0, [r2, #4]
-	ldr r2, _080B06CC @ =0x040000C4
-	ldr r0, [r2]
-	movs r1, #0x80
-	lsls r1, r1, #0x12
-	ands r0, r1
-	cmp r0, #0
-	beq _080B06AC
-	ldr r0, _080B06D0 @ =0x84400004
-	str r0, [r2]
-_080B06AC:
-	ldr r0, _080B06D4 @ =0x040000C6
-	movs r2, #0x80
-	lsls r2, r2, #3
-	adds r1, r2, #0
-	strh r1, [r0]
-	movs r2, #0xb6
-	lsls r2, r2, #8
-	adds r1, r2, #0
-	strh r1, [r0]
-_080B06BE:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080B06C4: .4byte 0x03007FF0
-_080B06C8: .4byte 0x978C92AD
-_080B06CC: .4byte 0x040000C4
-_080B06D0: .4byte 0x84400004
-_080B06D4: .4byte 0x040000C6
-
-    .syntax divided
diff --git a/asm/non_matching/m4a/m4aSoundVSyncOff.inc b/asm/non_matching/m4a/m4aSoundVSyncOff.inc
deleted file mode 100644
index 4b025c78..00000000
--- a/asm/non_matching/m4a/m4aSoundVSyncOff.inc
+++ /dev/null
@@ -1,57 +0,0 @@
-
-	.syntax unified
-
-	.text
-
-	push {lr}
-	sub sp, #4
-	ldr r0, _080B05E4 @ =0x03007FF0
-	ldr r2, [r0]
-	ldr r1, [r2]
-	ldr r3, _080B05E8 @ =0x978C92AD
-	adds r0, r1, r3
-	cmp r0, #1
-	bhi _080B05DC
-	adds r0, r1, #0
-	adds r0, #0xa
-	str r0, [r2]
-	ldr r1, _080B05EC @ =0x04000102
-	movs r0, #0
-	strh r0, [r1]
-	ldr r3, _080B05F0 @ =0x040000C4
-	ldr r0, [r3]
-	movs r1, #0x80
-	lsls r1, r1, #0x12
-	ands r0, r1
-	cmp r0, #0
-	beq _080B05C0
-	ldr r0, _080B05F4 @ =0x84400004
-	str r0, [r3]
-_080B05C0:
-	ldr r1, _080B05F8 @ =0x040000C6
-	movs r3, #0x80
-	lsls r3, r3, #3
-	adds r0, r3, #0
-	strh r0, [r1]
-	movs r0, #0
-	str r0, [sp]
-	movs r0, #0xd4
-	lsls r0, r0, #2
-	adds r1, r2, r0
-	ldr r2, _080B05FC @ =0x0500018C
-	mov r0, sp
-	bl CpuSet
-_080B05DC:
-	add sp, #4
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080B05E4: .4byte 0x03007FF0
-_080B05E8: .4byte 0x978C92AD
-_080B05EC: .4byte 0x04000102
-_080B05F0: .4byte 0x040000C4
-_080B05F4: .4byte 0x84400004
-_080B05F8: .4byte 0x040000C6
-_080B05FC: .4byte 0x0500018C
-
-    .syntax divided
diff --git a/asm/non_matching/m4a/m4aSoundVSyncOn.inc b/asm/non_matching/m4a/m4aSoundVSyncOn.inc
deleted file mode 100644
index 7781a9cc..00000000
--- a/asm/non_matching/m4a/m4aSoundVSyncOn.inc
+++ /dev/null
@@ -1,61 +0,0 @@
-
-	.syntax unified
-
-	.text
-
-	push {r4, lr}
-	ldr r0, _080B0658 @ =0x03007FF0
-	ldr r2, [r0]
-	ldr r3, [r2]
-	ldr r0, _080B065C @ =0x68736D53
-	cmp r3, r0
-	beq _080B0650
-	ldr r1, _080B0660 @ =0x040000C6
-	movs r4, #0xb6
-	lsls r4, r4, #8
-	adds r0, r4, #0
-	strh r0, [r1]
-	ldrb r0, [r2, #4]
-	movs r0, #0
-	strb r0, [r2, #4]
-	adds r0, r3, #0
-	subs r0, #0xa
-	str r0, [r2]
-	ldr r3, _080B0664 @ =0x04000006
-	ldrb r0, [r3]
-	ldr r1, [r2, #0x10]
-	cmp r0, #0x9f
-	bne _080B0636
-	adds r2, r3, #0
-_080B0630:
-	ldrb r0, [r2]
-	cmp r0, #0x9f
-	beq _080B0630
-_080B0636:
-	ldr r2, _080B0664 @ =0x04000006
-_080B0638:
-	ldrb r0, [r2]
-	cmp r0, #0x9f
-	bne _080B0638
-	ldr r4, _080B0668 @ =0x04000100
-	ldr r0, _080B066C @ =0x00044940
-	bl __divsi3
-	rsbs r0, r0, #0
-	strh r0, [r4]
-	ldr r1, _080B0670 @ =0x04000102
-	movs r0, #0x80
-	strh r0, [r1]
-_080B0650:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080B0658: .4byte 0x03007FF0
-_080B065C: .4byte 0x68736D53
-_080B0660: .4byte 0x040000C6
-_080B0664: .4byte 0x04000006
-_080B0668: .4byte 0x04000100
-_080B066C: .4byte 0x00044940
-_080B0670: .4byte 0x04000102
-
-    .syntax divided
diff --git a/src/gba/m4a.c b/src/gba/m4a.c
index 9fac2854..0fa6b184 100644
--- a/src/gba/m4a.c
+++ b/src/gba/m4a.c
@@ -46,6 +46,7 @@ typedef void (*CgbOscOffFunc)(u8);
 typedef u32 (*MidiKeyToCgbFreqFunc)(u8, u8, u8);
 typedef void (*ExtVolPitFunc)(void);
 typedef void (*MPlayMainFunc)(MusicPlayerInfo*);
+typedef void (*XcmdFunc)(MusicPlayerInfo*, MusicPlayerTrack*);
 
 typedef struct WaveData {
     u16 type;
@@ -309,19 +310,7 @@ extern char SoundMainRAM[];
 
 extern void* gMPlayJumpTable[];
 
-typedef void (*XcmdFunc)(MusicPlayerInfo*, MusicPlayerTrack*);
-extern const XcmdFunc gXcmdTable[];
-
 extern CgbChannel gCgbChans[];
-extern const u8 gCgb3Vol[];
-
-extern const u8 gScaleTable[];
-extern const u32 gFreqTable[];
-extern const u16 gPcmSamplesPerVBlankTable[];
-
-extern const u8 gCgbScaleTable[];
-extern const s16 gCgbFreqTable[];
-extern const u8 gNoiseTable[];
 
 extern char gNumMusicPlayers[];
 extern char gMaxLines[];
@@ -654,9 +643,16 @@ void m4aMPlayFadeIn(MusicPlayerInfo* mplayInfo, u16 speed) {
     }
 }
 
-NONMATCH("asm/non_matching/m4a/m4aMPlayImmInit.inc", void m4aMPlayImmInit(MusicPlayerInfo* mplayInfo)) {
-    s32 trackCount = mplayInfo->trackCount;
-    MusicPlayerTrack* track = mplayInfo->tracks;
+void m4aMPlayImmInit(MusicPlayerInfo* mplayInfo) {
+    s32 trackCount;
+    MusicPlayerTrack* track;
+
+    if (mplayInfo->ident != ID_NUMBER)
+        return;
+
+    mplayInfo->ident++;
+    trackCount = mplayInfo->trackCount;
+    track = mplayInfo->tracks;
 
     while (trackCount > 0) {
         if (track->flags & MPT_FLG_EXIST) {
@@ -673,8 +669,8 @@ NONMATCH("asm/non_matching/m4a/m4aMPlayImmInit.inc", void m4aMPlayImmInit(MusicP
         trackCount--;
         track++;
     }
+    mplayInfo->ident = ID_NUMBER;
 }
-END_NONMATCH
 
 void MPlayExtender(CgbChannel* cgbChans) {
     SoundInfo* soundInfo;
@@ -885,27 +881,26 @@ void SoundClear(void) {
     soundInfo->ident = ID_NUMBER;
 }
 
-NONMATCH("asm/non_matching/m4a/m4aSoundVSyncOff.inc", void m4aSoundVSyncOff(void)) {
+void m4aSoundVSyncOff(void) {
     SoundInfo* soundInfo = SOUND_INFO_PTR;
 
     if (soundInfo->ident >= ID_NUMBER && soundInfo->ident <= ID_NUMBER + 1) {
         soundInfo->ident += 10;
 
+        REG_TM0CNT_H = 0;
+
         if (REG_DMA1CNT & (DMA_REPEAT << 16))
             REG_DMA1CNT = ((DMA_ENABLE | DMA_START_NOW | DMA_32BIT | DMA_SRC_INC | DMA_DEST_FIXED) << 16) | 4;
 
-        if (REG_DMA2CNT & (DMA_REPEAT << 16))
-            REG_DMA2CNT = ((DMA_ENABLE | DMA_START_NOW | DMA_32BIT | DMA_SRC_INC | DMA_DEST_FIXED) << 16) | 4;
-
         REG_DMA1CNT_H = DMA_32BIT;
-        REG_DMA2CNT_H = DMA_32BIT;
 
         CpuFill32(0, soundInfo->pcmBuffer, sizeof(soundInfo->pcmBuffer));
     }
 }
-END_NONMATCH
 
-NONMATCH("asm/non_matching/m4a/m4aSoundVSyncOn.inc", void m4aSoundVSyncOn(void)) {
+#define REG_VCOUNT_8 (*(vu8*)REG_ADDR_VCOUNT)
+
+void m4aSoundVSyncOn(void) {
     SoundInfo* soundInfo = SOUND_INFO_PTR;
     u32 ident = soundInfo->ident;
 
@@ -913,16 +908,33 @@ NONMATCH("asm/non_matching/m4a/m4aSoundVSyncOn.inc", void m4aSoundVSyncOn(void))
         return;
 
     REG_DMA1CNT_H = DMA_ENABLE | DMA_START_SPECIAL | DMA_32BIT | DMA_REPEAT;
-    REG_DMA2CNT_H = DMA_ENABLE | DMA_START_SPECIAL | DMA_32BIT | DMA_REPEAT;
 
     soundInfo->pcmDmaCounter = 0;
     soundInfo->ident = ident - 10;
-}
-END_NONMATCH
 
-NONMATCH("asm/non_matching/m4a/m4aSoundVSync.inc", void m4aSoundVSync(void)) {
+    while (REG_VCOUNT_8 == 0x9f) {}
+    while (REG_VCOUNT_8 != 0x9f) {}
+
+    REG_TM0CNT_L = -(0x44940 / soundInfo->pcmSamplesPerVBlank);
+    REG_TM0CNT_H = 0x80;
+}
+
+void m4aSoundVSync(void) {
+    SoundInfo* soundInfo = SOUND_INFO_PTR;
+
+    if (soundInfo->ident - ID_NUMBER > 1)
+        return;
+
+    soundInfo->pcmDmaCounter--;
+    if ((s8)soundInfo->pcmDmaCounter > 0)
+        return;
+    soundInfo->pcmDmaCounter = soundInfo->pcmDmaPeriod;
+    if (REG_DMA1CNT & (DMA_REPEAT << 16)) {
+        REG_DMA1CNT = ((DMA_ENABLE | DMA_START_NOW | DMA_32BIT | DMA_SRC_INC | DMA_DEST_FIXED) << 16) | 4;
+    }
+    REG_DMA1CNT_H = DMA_32BIT;
+    REG_DMA1CNT_H = DMA_ENABLE | DMA_START_SPECIAL | DMA_32BIT | DMA_REPEAT;
 }
-END_NONMATCH
 
 void MPlayOpen(MusicPlayerInfo* mplayInfo, MusicPlayerTrack* tracks, u8 trackCount) {
     SoundInfo* soundInfo;