 Often highlighted as the first true jazz-rock recording is the only album by the relatively obscure New York-based the Free Spirits with "Out of Sight and Sound" (1966).The first group of bands to self-consciously use the label were R&B oriented white rock bands that made use of jazzy horn sections, like Electric Flag, Blood, Sweat & Tears and Chicago, to become some of the most commercially successful acts of the later 1960s and the early 1970s.British acts to emerge in the same period from the blues scene, to make use of the tonal and improvisational aspects of jazz, included Nucleus and the Graham Bond and John Mayall spin-off Colosseum.