In 2001 Jace Clayton was an unknown DJ who recorded a three-turntable, sixty-minute mix and put it online to share with friends. Within weeks, Gold Teeth Thief became an international calling card, whisking Clayton away to play a nightclub in Zagreb, a gallery in Osaka, a former brothel in Sao Paolo, and the American Museum of Natural History. Just as the music world made its fitful, uncertain transition from analog to digital, Clayton found himself...