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
Miles Davis he accompanied a singer. In 1945, he replaced Dizzy Gillespie in Charlie Parker's quintet. On November 26, Davis participated in several recording sessions as part of Parker's group Reboppers that also involved Gillespie and Max Roach, displaying hints of the style he would become known for. In Parker's song "Now's the Time", Davis played a solo that anticipated cool jazz. He then joined a big band led by Benny Carter, performing in St. Louis and remaining with the band in California. He again played with Parker and Gillespie. In Los Angeles, Parker had a nervous breakdown that put him in