Four drummers talking about jazz music and jazz drumming, unscripted and improvised. Vosbein is joined by artist/educators Adam Nussbaum, Ed Soph, and Billy Drummond as they examine the work of two under-appreciated drummers, Ed Blackwell and Al Harewood. More with Billy Drummond: https://www.youtube.com/watch?v=x1osi6IZ84I&list=FL2oQweHFiflFyNDInpN9PJw&index=25