He wasn’t known to mainstream audiences, and when he died at age thirty-two, he had never had a pop hit. Yet since his death, J Dilla has become a demigod, revered as one of the most important musical figures of the past hundred years. At the core of this adulation is innovation: as the producer behind some of the most influential rap and R&B acts of his day, Dilla created a new kind of musical time-feel, an accomplishment on a par with the revolutions wrought by Louis Armstrong and James Brown. Dilla and