If James Brown was the hardest working man in show business Jeff Sherman might be the hardest working guitarist. He’s been a busy, in-demand guitar wizard since he was a teenager giving lessons to neighborhood kids. And between playing in rock ‘n’ roll bands of the day, teaching, working with the Louisville Orchestra, recording, going on tour with Marvin Gaye and a pair of shows with the infamous Italian tenor Luciano Pavarotti, Sherman hasn’t marched to anything but a fast and steady drumbeat for nearly 57 years.