Nice to see another Rhythm game on the jam! I think your approach is certainly unique. Takes a bit of getting used to but definitely fun once you do!
As an audio guy, I do have to say that the audio balance is a bit off here. The SFX are quite loud and jarring in comparison to the level of the BG music. You only need the SFX about 3 dB louder for it to punch above your backing track.
Still, great take on a rhythm game!