Born and raised in Tulsa, Oklahoma, Elvin Bishop didn’t have much exposure to live music as a youngster. But his family had a radio, and in between the pop schmaltz and the C&W that ruled the airwaves in the 1950s, that radio could sometimes catch the legendary R&B programming beamed throughout the southern part of the U.S. at night by Nashville radio station WLAC. That station introduced Bishop to the classic records of Jimmy Reed, Howlin’ Wolf and Muddy Waters, and once his ears had been ho...