If you didn’t get a chance to try out Audiosurf when it was in open beta a few weeks ago, allow me to sum it up in one word: Wow.
This forthcoming PC title allows you to “ride” your own music, creating a gameplay experience on the fly that not only makes sense, but is extremely fun and incredibly addictive. The game is a unique combination of the music/rhythm, puzzle, and racing genre’s, and its unique and innovative concept has garnered it the front-runner position for the upcoming Independent Games Festival.
I have played this and I can attest to it’s sheer awesomeness, despite the fact that (when I played it) I couldn’t play The Island by The Decemberists because it’s too long (12min).
More details from the quoted Destructoid article.