Symphony

The original Audiosurf, Audioshield, Melody's Escape and even The Polynomial (bizarre though it is) are all games I'd sooner recommend for gameplay that plugs into your music library and does something interesting with it.

I think the point goals for clearing a song at a certain level make a fair amount of sense and unlocking different weapons and available power-ups from songs in your library is kind of cool, I just wish it had more to do with the music than blasting laser gun noises and placing a wireframe shoot-em-up over it.

It would be more fun if one could change the game's somber, sad menu music (ironic for a game based on your music files) but the game's neon-saturated graphics are beautiful and impressive and the game runs well with no major bugs and few minor ones.

Symphony comes with it's own robust and varying soundtrack, and honestly, if it wasn't for me going back my music collection to find it, I wouldn't remember what was in it besides the menu music.