I don't really get it. I looks like it has some potential, but I don't really get what you're trying to tell me with this game. It doesn't especailly tie with the theme (or the name of the game), and the gameplay is pretty confusing : After I lose once by failing erasing the lines, what I'm supposed to do, try again and repeat ? It's very short and doesn't have much going on, so I would really like to know your intentions behind it.

Fun concept, but I kept losing in the first few seconds. (Although, that maybe cuz I'm bad at rythym games in general)

As a future update, maybe add an option to use hues of a single colour instead? 

It really gives off the feeling of claustrophobia, but it's way too fast and too uncontrollable. It's almost impossible to delete all the incoming lines.

note to others: the build.zip holds a windows executable

neat idea, gets extremely hard very fast. I'm not really sure what affects the amount of reducing going on. Is it about how much the colors match?