It's getting harder to deny that Chicago's rap scene is experiencing anything other than a creative surge. Welcome the latest additions to the family, Infamous 3rd, a little-known group who released a mixtape entitled Gypsy 3rds and Infamous Egyptians late last year (it can be downloaded for free here). Single and stand-out track "Test Dummy" has a beat that you might describe as banging, knocking, nutty or slapping, depending on your area of origin, or the area of origin of the blogs you've been reading. Good lord.