Director - and piano player - Clint Eastwood explores his life-long passion for piano blues, using a treasure trove of rare historical acts as well as interviews and performances by such living legends as Ray Charles, Fats Domino, Little Richard and Dr. John. Piano Blues features interviews and live performances by Ray Charles, Dr. John, Marcia Ball, Pinetop Perkins, Dave Brubeck, J ay McShann and others; plus rare, archival performance footage from Ray Charles, Otis Spann, Art Tatum, Albert Ammons, Pete Johnson, Jay McShann, Big Joe Turner, Oscar Peterson, Nat King Cole, Martha Davis, Fats Domino, Professor Longhair, Charles Brown, Duke Ellington and others.