This concept is really, really fun! Like what other people in the comments have said already, I would have appreciated at least some sound in this game. The silence is awkward, and it makes it so I have to look down at the bottom of the screen instead of paying attention to my platforming. I think it would be cool if there was a basic drum beat for every level, and each item you picked up added another drum element (like the jump being a hi-hat, for example). That way I could keep track of the level and listen to the beat to tell me what was going to happen next. Not really sure how you'd play the game if you were deaf, though. I also didn't really get the theme of the character all that much. I don't know why I'm playing as a dwarf man in a game about music, haha. Overall, five star concept, I hope Mark takes a look at this one!