Power Pickin, Vol. 4 Bluegrass Banjo Master Class taught by Bill Evans Intermediate-Advanced 140 min DVD Master Class is not a term you hear much in the banjo world, though it is quite common in the jazz and classical music worlds. Essentially, it is a chance to attend an instructional event with a noted master of their instrument. In this DVD, Bill Evans follows the same concept, presenting an overview of techniques that will benefit any banjo player.