The extraordinary bass player Abraham Laboriel started off with a little improv slow blues riff, then the rest of the band joined in making it up as they played. Hadley Hockensmith on guitar, Bill Maxwell on drums, Greg Mathieson on organ, and Phil Driscoll on trumpet. Phil also mashed up some lyrics from 2 or 3 songs, made up a few others and the result is this infectious blues number I'm calling "Case of the Blues." Great musicians making fantastic music on the fly,