In the beginning there was rhythm…until something else emerged from New York City’s South Bronx: a rougher, rowdier spin on funk innovators like James Brown, George Clinton, Marvin Gaye, and Sly Stone. Rap. Based on the fundamentals of “beats” (copped off other people’s records) and “breaks” (assisted by a turntable and some discreet crossfading), the MCs’ contrasting delivery styles soon split along two camps: Disco and B-Boys.