If the vocal track is the heart of a song, the rhythm track--the beat--is its body. It is the sonic element that taps into the most primal part of us and makes us want to move. The Rhythm Track breaks the beat down, and examines the endless experimentation that has taken place in its core, the very bedrock of all music. Charting the progression of the beat from drum and bass to beatbox and beyond--from Little Richard and James Brown to disco and EDM--Episode Five listens in on the ongoing dialogue between dance floor and recording studio, and captures the ever-evolving process of building an irresistible beat.