Its hard to describe this game, but its a gorgeous abstract tron like open world where you solve visual musical puzzles to continue. If your a fan of electronics and art games, you might want to try it out. Its like a rich moose that you want to savor and play over time versus consuming at once and feeling guilty. I might add that many of the puzzles have leeway with how you create the sound, so your making your own version of the music along the way.
Turn down your lights, put on your headphones and just "be".
[ame="
http://www.youtube.com/watch?v=sJtPAizItM4"]FRACT OSC Launch Trailer: Available Now - YouTube[/ame]
(You don't have to know how to play music btw, though I'm sure it helps for the built in synth you unlock during progress)
(didn't see a thread on this)