diff --git a/duke/duke_music.s b/duke/duke_music.s
new file mode 100644
index 00000000..179155c3
--- /dev/null
+++ b/duke/duke_music.s
@@ -0,0 +1,70 @@
+setup_music:
+
+	;===================================
+	; Setup Mockingboard
+	;===================================
+	lda	#0
+	sta	DONE_PLAYING
+	sta	LOOP
+
+	; detect mockingboard
+	jsr	mockingboard_detect
+
+	bcc	mockingboard_notfound
+
+mockingboard_found:
+;       jsr     mockingboard_patch      ; patch to work in slots other than 4?
+
+	lda	SOUND_STATUS
+	ora	#SOUND_MOCKINGBOARD
+	sta	SOUND_STATUS
+
+	;=======================
+	; Set up 50Hz interrupt
+	;========================
+
+	jsr	mockingboard_init
+	jsr	mockingboard_setup_interrupt
+
+	;============================
+	; Init the Mockingboard
+	;============================
+
+	jsr	reset_ay_both
+	jsr	clear_ay_both
+
+	;==================
+	; init song
+	;==================
+
+	jsr     pt3_init_song
+
+	jmp     done_setup_sound
+
+
+mockingboard_notfound:
+
+
+done_setup_sound:
+
+	rts
+
+
+	;==========================
+	; includes
+	;==========================
+
+	; pt3 player
+	.include "pt3_lib_core.s"
+	.include "pt3_lib_init.s"
+	.include "interrupt_handler.s"
+	.include "pt3_lib_mockingboard_detect.s"
+	.include "pt3_lib_mockingboard_setup.s"
+
+
+PT3_LOC = bg_music
+
+.align $100
+bg_music:
+.incbin "music/theme.pt3"
+