So kewl! I played Mary had a Little Lamb and Star Wars :P For extra bonus, would have liked
1) The mallets to have been more colorful/textured
2) A fun particle effect when hit a key
3) Actual music to read and play in scene!
Just fyi, and sorry for the sp#m, but in case you wanted to know, we are reviewing/playing this live at twitch.tv/bonozoapps