diff --git a/music/pt3_lib/LICENSE b/music/pt3_lib/LICENSE
new file mode 100644
index 00000000..fd198605
--- /dev/null
+++ b/music/pt3_lib/LICENSE
@@ -0,0 +1,4 @@
+This code is dual licensed under one of the following:
+	0BSD
+	GPL-2.0-only
+
diff --git a/music/pt3_lib/interrupt_handler.s b/music/pt3_lib/interrupt_handler.s
index e80581ad..2a766283 100644
--- a/music/pt3_lib/interrupt_handler.s
+++ b/music/pt3_lib/interrupt_handler.s
@@ -19,6 +19,7 @@
 
 interrupt_handler:
 	php			; save status flags
+	cld			; clear decimal mode
 	pha			; save A				; 3
 				; A is saved in $45 by firmware
 	txa