New Orleans' Mac Rebennack has come full circle: From his earliest days as a French Quarter guitarist and then key-tickling jellyroll wunderkind on recordings for the top L.A. artists, to his hit-making stint as Cajun voodoo priest Dr. John The Night Tripper, to his most recent revered status as one of New Orleans' greatest living singer/pianists. After a decade or more toiling in relative obscurity, he was inducted into the Rock and Roll Hall of Fame two years ago.