In 50 years, hip-hop has become one of the most popular music genres in the world. In its early days, the recipe for a hip-hop duo or group was simple: two turntables for the disc jockey and a microphone for the emcee. In this encore episode first shared in April, Darian Wigfall, who DJs under the moniker DJ Whiz, shares the fundamentals of DJing — and why he feels vinyl is the best way to get into the craft.