Cool rhytm game.
I like the notebook aesthetic, and the controls are solid and easy to get as you went for 4 directions instead of more notes.
Some small issues i had, the difficulty is a bit hard i feel, as getting some of these triple notes sometimes feels quite fast, and while the music is cool, i feel that the very loud beeps the inputs make are a bit distracting and out of place with the rest, it could be better if you had either notes or beeps that would sample one of the sounds that come from the actual music of the game.
That being said, it's still enjoyable to play.
Good job :)