diff --git a/static/qrplay/v3d.html b/static/qrplay/v3d.html
index a77162e..0597cfb 100644
--- a/static/qrplay/v3d.html
+++ b/static/qrplay/v3d.html
@@ -28,7 +28,7 @@
 F.A?.close();
 F.A=A=new AudioContext;
 // kill some time for the audio context to start
-S='@qx@'+F.value;
+S='@qx@'+F.value.toLowerCase();
 // stack
 B=[];
 // stack variables
@@ -95,6 +95,6 @@ M=_=>{
 	S=C[a]+S.slice(s--);
 	
 	// loop
-	(S=S.slice(s))&&setTimeout(M)
+	(S=S.slice(s))&&setTimeout(M,50)
 };M()
 ">#play</BUTTON> <BUTTON ONCLICK=F.A.close()>#stop