The idea seems interesting. But it can also be a bit unfair. If the player is on a platform about that is about to disappear without any reachable platform next to them, they'll inevitably lose just because of bad luck... Also, the jumping doesn't feel really precise or dynamic, it's a bit weird to control.
But still, it's interesting how the music data is used in the game. There is potential in that. Congrats for this prototype!