In this video, hip hop pioneer Grandmaster Flash displays the fundamentals of a hip hop DJ's craft, from blending, crossfades, scratch technique and calibrating your turntables. I am so grateful for whoever caught this educational moment of hip hop and saved it from 1983, my first stories of who Flash is and what he means to the culture came from KRS One. It hard to believe this man single-handedly created a whole other entity of the audio electronics market by pioneering the DJ mixer.