RINGO STARR Rock’s most famous drummer remembers the Beatles and looks ahead to a Starr-filled future. THE FRAY    Earning scars, telling stories and letting themselves get a little bit louder in the process. KEITH JARRETT    Jazz’s premier improvisational pianist reveals the joy and anxiety of playing without a net. SEAN GARRETT  The producer behind some of today’s biggest R&B radio hits takes you into the studio. ANI DiFRANCO  How...