diff --git a/framehook.asm b/framehook.asm
index 9fd89f8..db39bba 100644
--- a/framehook.asm
+++ b/framehook.asm
@@ -22,9 +22,10 @@
 !LOCK_STATS = "$7EF443"
 FrameHookAction:
 	JSL $0080B5 ; Module_MainRouting
-	PHP : PHB : PHD : REP #$30 : PHA : PHX : PHY
-		LDA #$0000 : TCD : SEP #$20 : PHA : PLB
-		JSL CheckMusicLoadRequest
+	JSL CheckMusicLoadRequest
+	PHP : REP #$30 : PHA
+	
+		SEP #$20
 
 		;LDA EnableSRAMTrace : AND.l TournamentSeedInverse : BEQ +
 		;	LDA $1A : BNE ++ : JSL.l WriteStatusPreview : ++ ; write every 256 frames
@@ -39,9 +40,9 @@ FrameHookAction:
 				LDA !ITEM_FRAMES_LOW : INC : STA !ITEM_FRAMES_LOW : BNE +
 					LDA !ITEM_FRAMES_HIGH : INC : STA !ITEM_FRAMES_HIGH
 				+
-			SEP #$20 ; set 8-bit accumulator ?? check this
+			;SEP #$20 ; set 8-bit accumulator ?? check this
 		++
-	REP #$30 : PLY : PLX : PLA : PLD : PLB : PLP
+	REP #$30 : PLA : PLP
 RTL
 ;--------------------------------------------------------------------------------
 NMIHookAction:
diff --git a/msu.asm b/msu.asm
index ca739e5..76fb53c 100644
--- a/msu.asm
+++ b/msu.asm
@@ -186,6 +186,8 @@ RTS
 ; Extended OST/SPC fallback, decide which track to actually play
 ;--------------------------------------------------------------------------------
 CheckMusicLoadRequest:
+    PHP : PHB : PHD : REP #$30 : PHA : PHX : PHY
+    LDA #$0000 : TCD : SEP #$20 : PHA : PLB
         LDA !REG_MUSIC_CONTROL_REQUEST : BEQ .skip+3 : BMI .skip+3
         CMP !REG_CURRENT_COMMAND : BNE .continue
         CMP.b #22 : BNE .skip   ; Check GT when mirroring from upstairs
@@ -195,6 +197,7 @@ CheckMusicLoadRequest:
 .skip
         LDA !REG_MUSIC_CONTROL_REQUEST
         STA !REG_MUSIC_CONTROL : STZ !REG_MUSIC_CONTROL_REQUEST
+    REP #$30 : PLY : PLX : PLA : PLD : PLB : PLP
     RTL
         
 .continue
@@ -355,11 +358,13 @@ CheckMusicLoadRequest:
 
 .done
         LDA !REG_MUSIC_CONTROL_REQUEST : STA !REG_MUSIC_CONTROL : STZ !REG_MUSIC_CONTROL_REQUEST
+        REP #$30 : PLY : PLX : PLA : PLD : PLB : PLP
     RTL
 
 .sfx_indoors
         LDA !REG_MUSIC_CONTROL_REQUEST : STA !REG_MUSIC_CONTROL : STZ !REG_MUSIC_CONTROL_REQUEST
-    SEP #$20 : LDA.b #$05 : STA $012D ; Vanilla subroutine expects 8-bit A, doesn't use X/Y
+    SEP #$20 : LDA.b #$05 : STA $012D
+    REP #$30 : PLY : PLX : PLA : PLD : PLB : PLP
     JML Module_PreDungeon_setAmbientSfx
 ;--------------------------------------------------------------------------------
 
@@ -737,12 +742,12 @@ MSUMain:
 ; Wait for the fanfare music to start, or else it can get skipped entirely
 ;--------------------------------------------------------------------------------
 FanfarePreload:
-    STA !REG_MUSIC_CONTROL_REQUEST  ; thing we wrote over
+    STA.l !REG_MUSIC_CONTROL_REQUEST  ; thing we wrote over
     PHA
         JSL CheckMusicLoadRequest
         WAI
     PLA
-    - : CMP !REG_SPC_CONTROL : BNE -
+    - : CMP.l !REG_SPC_CONTROL : BNE -
     JML AddReceivedItem_doneWithSoundEffects
 ;--------------------------------------------------------------------------------
 
@@ -765,7 +770,7 @@ PendantFanfareWait:
     jml PendantFanfareContinue
 .spc
     SEP #$20
-    LDA !REG_SPC_CONTROL : BNE .continue
+    LDA.l !REG_SPC_CONTROL : BNE .continue
 .done
     jml PendantFanfareDone
 ;--------------------------------------------------------------------------------
@@ -789,7 +794,7 @@ CrystalFanfareWait:
     jml CrystalFanfareContinue
 .spc
     SEP #$20
-    LDA !REG_SPC_CONTROL : BNE .continue
+    LDA.l !REG_SPC_CONTROL : BNE .continue
 .done
     jml CrystalFanfareDone
 ;--------------------------------------------------------------------------------