For a story completely centered around musicality, the sound design is disastrous. Not only is the entire story centered around a piece very obviously constructed with little to no knowledge of basic song structure and experimentation, the gameplay is terrible. The amount of time it takes to fall from a single jump, coupled with minimalism, makes the entire experience unenjoyable. 

The shortcomings of the game's function could have been counteracted by a listenable soundtrack, but next time please learn how to play music and discover how instruments synchronize with each other before you make a tune-focused game.