Wow! You played with William Bell!!!!
I have lots of Piano Red's stuff, as Piano Red and Dr Feelgood. Never knew who the guitarist was. Also never knew DOn Law produced Robert Johnson's recordings. Phew!
What blew MY mind was that 'Right string but the wrong yo-yo' was derived from 'Right key but the wrong keyhole' by Clarence WIlliams' Blue Five, which I finally heard a few weeks ago on the Sidney Bechet Mosaic Select.
Your post made me dig out my Piano Red EP
Clyde 'Blowtop' Lynn on sax, Wes Jackson, (g) and Marion Booker (later with the George Benson/Lonnie Smith/Ronnie Cuber quartet).
MG