diff --git a/demosplash/musictest.s b/demosplash/musictest.s
index 14941872..3d451b02 100644
--- a/demosplash/musictest.s
+++ b/demosplash/musictest.s
@@ -37,11 +37,30 @@ frame_decode_loop:
 	inc	FRAME_OFFSET
 	bne	frame_decode_loop
 
+	inc     r0_wrsmc+2        ; 6
+        inc     r1_wrsmc+2        ; 6
+        inc     r2_wrsmc+2        ; 6
+        inc     r4_wrsmc+2        ; 6
+        inc     r13_wrsmc+2       ; 6
+	inc     r6_wrsmc+2        ; 6
+	inc     r7_wrsmc+2        ; 6
+	inc     r8_wrsmc+2        ; 6
+        inc     r9_wrsmc+2        ; 6
+        inc     r11_wrsmc+2       ; 6
+        inc     r12_wrsmc+2       ; 6
+
+
 	inc	FRAME_PAGE
 	lda	FRAME_PAGE
-	cmp	#5
+
+
+
+	cmp	#3
 	bne	frame_decode_loop
 
+	lda	#0
+	sta	FRAME_OFFSET
+
 
 
 ;	lda	#1
diff --git a/demosplash/pt3_lib_play_frame.s b/demosplash/pt3_lib_play_frame.s
index 49a680e6..00c79947 100644
--- a/demosplash/pt3_lib_play_frame.s
+++ b/demosplash/pt3_lib_play_frame.s
@@ -222,17 +222,19 @@ done_frame_wrap:
 	;========================
 	; 28+26+6= 60
 
+	; trashes A,X
+
 play_mb_write:
 
 	; address
 	stx	MOCK_6522_ORA1		; put address on PA1		; 4
 	stx	MOCK_6522_ORA2		; put address on PA2		; 4
-	ldy	#MOCK_AY_LATCH_ADDR	; latch_address for PB1		; 2
-	sty	MOCK_6522_ORB1		; latch_address on PB1          ; 4
-	sty	MOCK_6522_ORB2		; latch_address on PB2		; 4
-	ldy	#MOCK_AY_INACTIVE	; go inactive			; 2
-	sty	MOCK_6522_ORB1						; 4
-	sty	MOCK_6522_ORB2						; 4
+	ldx	#MOCK_AY_LATCH_ADDR	; latch_address for PB1		; 2
+	stx	MOCK_6522_ORB1		; latch_address on PB1          ; 4
+	stx	MOCK_6522_ORB2		; latch_address on PB2		; 4
+	ldx	#MOCK_AY_INACTIVE	; go inactive			; 2
+	stx	MOCK_6522_ORB1						; 4
+	stx	MOCK_6522_ORB2						; 4
 								;===========
 								;	28
 
@@ -242,8 +244,8 @@ play_mb_write:
 	lda	#MOCK_AY_WRITE		;				; 2
 	sta	MOCK_6522_ORB1		; write on PB1			; 4
 	sta	MOCK_6522_ORB2		; write on PB2			; 4
-	sty	MOCK_6522_ORB1						; 4
-	sty	MOCK_6522_ORB2						; 4
+	stx	MOCK_6522_ORB1						; 4
+	stx	MOCK_6522_ORB2						; 4
 								;===========
 								; 	26
 
diff --git a/demosplash/pt3_lib_write_frame.s b/demosplash/pt3_lib_write_frame.s
index 43ef8d7f..2f176f91 100644
--- a/demosplash/pt3_lib_write_frame.s
+++ b/demosplash/pt3_lib_write_frame.s
@@ -89,13 +89,13 @@ r13_wrsmc:
 	lda	NOISE
 	and	#$1f
 	ora	ENVELOPE_SHAPE
-r6_smcwr:
+r6_wrsmc:
 	sta	$9F00,Y
 
 	;=====================
 	; Register 7: Enable
 	lda	ENABLE
-r7_smcwr:
+r7_wrsmc:
 	sta	$A200,Y
 
 	;=====================