Pretty solid game. A game like this suffers greatly when the controls are not present or communicated in game, especially with them not being the most intuitive choices for controls for such a game when considering the vertical layout (though I get the choice, as they are very comfortable once you get accostumed to them). I appreciate the game making sure you perfect each level and making absolutely sure you got each level's mechanics down. That is something which is easy to miss in level and game design and can often break a player's experience in the long run. Nicely done.
All the levels felt like they were building up to a finished track level with a more sizable length, so I was a little dissapointed to find out the game is over so quickly. Especially in a rythm game, you want to have the time to vibe with the music. But time constraints are what they are and gamejams are tough, so even getting this responsive of a rythm game system is a feat of its own.
Good job and good luck! :)