I agree with just about every selection recommended so far (especially Muddy Waters Folksinger), and would add the beautifully mastered and packaged set on John Fahey's Revenant label: "Screamin' and Hollerin' The Blues--The Worlds of Charley Patton." Not only is Patton represented in this 7-CD set, but so are such Delta greats as Son House, Bukka White, Willie Brown and Tommy Johnson. Essential listening.
