Robert AshleyThis book explores the life and works of the pioneering opera composer Robert Ashley, one of the leading American composers of the post Cage generation. Ashley's innovations began in the 1960s when he, along with Alvin Lucier, Gordon Mumma, and David Behrman, formed the Sonic Arts Union, a group that turned conceptualism toward electronics. He was also instrumental in the influential ONCE Group, a theatrical ensemble that toured extensively in the