I love the rhythm and the immersive feeling but it would be nice if there were some other songs. I feel like it may get slightly repetitive after a while.
I think that the idea is really creative and effective! I love it!
I think that the menu buttons could be improved since they look slightly messy in my opinion.
Also, how did you load all the songs at the beginning?
Overall I think that the game is great and you are doing really well! Hope that you appreciate the criticism. :)