Arguably the heaviest bluesman ever, Muddy Waters literally electrified the Chicago blues world with the 1948 release of his first single on Chess Records (“I Can't Be Satisfied”). By taking the Robert Johnson and SonHouse-inspired acoustic Delta blues that he had played in Mississippi and firing it up with raw amplification, he created the blueprint for generations of Chicago blues players. Bob Margolin played guitar in Muddy Waters' band forseven years in the '70s, absorbing his mu...