London-based interactive developer Jim Hall has created Isle of Tune, an awesome music sequencer that's more than a little like Toshio Iwai's 1996 PC game SimTunes, allowing you to create/edit a song while laying out a street.

Basically, you direct cars around an isometric neighborhood, and they play different noises as they pass tress, lamp posts, and houses. You can easily set it up so that a separated car will replay a loop to create a basic beat for your song.

It's coming to iPhone, iPod Touch, and iPad soon, but you can play with the super fun app online right now for free! Some user-created "islands" that you need to check out: Michael Jackson's "Beat It", MGMT's "Kids", and Dr. Dre's "The Next Episode"

[Via Kottke]