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
Charlie Parker November 26, 1945, Parker led a record date for the Savoy label, marketed as the "greatest Jazz session ever." Recording as Charlie Parker's Reboppers, Parker enlisted such sidemen as Gillespie and Miles Davis on trumpet, Curly Russell on bass and Max Roach on drums. The tracks recorded during this session include "Ko-Ko", "Billie's Bounce" and "Now's the Time". In 1952 Parker and Gillespie released an album entitled "Bird and Diz". Shortly afterward, the Parker/Gillespie band traveled to an unsuccessful engagement at Billy Berg's club in Los Angeles. Most of the group returned to New York, but Parker remained in California,