Thank you for playing!
This was a typo from us: the settings menu should have said "Background noises" instead of "Music". Originally, we had a background music, but it made the game harder since we did not have time to make it go in sync with the beats (the beat frequency increases as you progress in the game, so the music also needs to speed up accordingly). Therefore we decided to remove the background music and only keep the background sounds (running water, bugs, etc.).