Acman, I always appreciate your contributions. Phil Woods is quite appropriate on this thread, and an extended discussion can be carried on.
"Sonny Boy", now that's one of them god old deep in the Delta names, and this music exemplifies "Sonny Boy"; it's as authentic as a delta cotton field, a shotgun shack, or a juke joint.
Judging from the album cover, Sonny Boy done caught "The Katy", moved up North and left that mule for somebody else to ride; this music is genuine Delta blues, I like it.
Enjoy the music.