A memory of this game just bubbled to the surface. Back when I was in college (in the golden age of illegal downloads), I got a bootlegged version of this game.
It was a racing game that synced to your itunes and adapted the rhythm of the course to whatever music you were listening to.
Oh the joys of being high, and not only listening to your favorite jams, but racing to them.
I don't know if it still exists, but if you enjoy getting high and want a fun, simple, and meditative late night task, you should check it out.