Johnny Winter has been playing electric blues since the Sixties, and his enthusiasm for it only grows with time. "There's never been a point in my life where I was even close to getting tired of playing blues," he says, relaxing in his dressing room at B.B. King's Blues Club in New York City, where he's performing a record-release show for his 2011 album, Roots. "The truth is, I love playing the blues, now more than I ever have before."