very polished entry and interesting concept! definitely seems like something you could release commercially without a lot of extra work. graphics are plain, but solid. soundtrack is minimal, but what i like most about it is the sound effects are in the same key as the soundtrack so if you time your movements to the beat it adds to the soundtrack. i honestly had more fun with that (and humming along my own additions) than clearing blocks lol. would be really neat if you added a mode that combined rhythm into the gameplay. otherwise, the sound effects got a little chaotic/discordant if i tried to play faster, so it was nice that you added the mute features.