Fun concept but the execution could use some work.
- In terms of platforming, the character could use some acceleration and better air-control to make them a bit more fun to run around with.
- I like the idea of rhythm based platforming, but the communication about how and when the elements of the stage respond to the beat could be clearer. For example, you could have the platforms blink twice before changing (kinda like those blocks in Mario 3D World). Colour coding or distinguishing in some way the parts of the stage based on when they change would also be ideal (e.g red blocks change every 3 beats, yellows every 2 etc. this could be changed every stage). This way the player doesn't have to sit there and figure out on what beats each part changes - as long as they're keeping track of the beat of the music and they know the colours they can respond immediately. The blocks could also have some sound effect when they change so that the beat they follow is a bit more intuitive.
- Though the game is promising, I'm not entirely sure how it fits the theme. But hey, I guess that doesn't really matter if you're gonna make this into its own thing.
But aside from that, the music fuckin' slaps. Hats off to you guys for making it under 2 days.