Veritable fount of musical knowledge Doug "Big Heat" O'Donnell sits in for Brian on this episode, which is all about people drumming. One person drumming is Grateful Dead guy Mickey Hart, who leads his Planet Drum ensemble through a variety of musical styles and a couple favorites from his old band. Doug knows a lot about Mickey, the Dead, and Rory, and if you listen you will too. Watch Mickey & Co. drum here: https://www.youtube.com/watch?v=uDTClsaNcyo