"Jammin' on the high Cs captures highlights of three mornings in January 2015 on which the blues and boogie woogie keyboard master was joined by Victor Wainwright, Janiva Magness, Tommy Castro, Lucky Peterson, Dwayne Dopsie, Billy Branch, Popa Chubby, Coco Montoya, members of Roomful of Blues and other unidentified supporting players ... There's a pronounced informality about these after-hours sessions that sets them apart from most studio sessions and formal club and concert sets".