It seems like the music evolves along the level's progress. I like it! =D I didn't have the patience to complete all the levels though. Despite the comfy mood of the game, I find the experience a bit stressful. x) I got mixed up in all the controls, was always waiting for the right color, getting annoyed when I missed it. When I was trying to play strategically I were just making a lot of mistakes, and when I tried not to think about it it felt like I was just waiting for a window that I shouldn't miss. It's not that I disliked the game though, but rather than it grew tiresome once the longer levels were introduce. The art is lovely too, even though it's mostly a static background. Overall I prefer to remember the short but sweet experience I had in the first to levels. Congrats for making this game!