1940s in jazz figures as baritone saxophonist Lars Gullin and pianist Bengt Hallberg. The theoretical underpinnings of cool jazz were set out by the blind Chicago pianist Lennie Tristano, and its influence stretches into such later developments as Bossa nova, modal jazz, and even free jazz. See also the list of cool jazz and West Coast musicians for further detail. The American Federation of Musicians recording ban, called by James Petrillo, continued through 1943. 1940s in jazz In the early 1940s in jazz, bebop emerged, led by Charlie Parker, Dizzy Gillespie, Thelonious Monk and others. It helped to shift jazz from danceable popular
Horn in jazz compete directly with Basie's hard-swinging blues, the duo capitalized on their contrast from Basie’s sound, playing with a soft and mellow sound. By showcasing their different sound, Ruff and Mitchell continued to get bookings from Birdland to play intermission for other big name groups like Miles Davis, Dizzy Gillespie, Sarah Vaughan, Lester Young, Dinah Washington and others. After working with Claude Thornhill and arranging for his orchestra, he began arranging for Miles Davis. In 1948 the Miles Davis Nonet was formed with a sound completely unlike anything jazz listeners had heard before. The original idea for the nonet was to