Brothers John and Terence Boylan created this highly imaginative device in 1968. Their single launch, Playback, was finished with aid from several session music artists, including Eric Gale, Chuck Rainey and Larry Coryell. A genuine, and even pioneering, concept recording, the set well balanced memorable tunes with experimental audio collages, wherein the duo’s smooth, ethereal harmony function enhanced a soul of experience. Although Playback became a cult preferred, it was not really a industrial success and its own protagonists later on embarked on contrasting single professions. Terry Boylan finished some well-crafted albums, the second option of which had been redolent of Jackson Browne, while John became an extremely respected maker for the Eagles, Linda Ronstadt and, in 1991, for the toon ‘group’, the Simpsons.