Flutterby™! : I am still finding that _Grumpy Player_

I am still finding that Grumpy Player is a reasonable home music system, but the Amazon Fire tablet I've been running it on has, despite all of the notifications being turned off and notification sound turned down, a tendency to play an ascending arpeggio at inopportune times.

I have not found the source for this.

Suggestions for a cheap small touch-screen web device that'd work as an audio player?