Nice game, didn't expect a silent entry to a rhythm game jam haha.
The UI actually feels very good, nice and clean. I also like that the stage of the musician gets filled with instruments as you progress. The progression system as a whole feels solid, and the fact that there's an in-game tutorial is a big plus! (Even if it's only some text, it still is way more than most game jam games have, plus for a "clicker" type of game that's totally fine and effective!).
The rhythm part of the game feels good (nice visual feedback for hits, solid timing bar), the silence makes it a bit hard though to be honest. I know it's part of the story, but I just wonder if the game could've been even better with sound and a different story? Although I have to admit the story is funny and unique concept. Great entry nevertheless!