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
John Garcia Gensel named full-time Minister to the Jazz Community; initially Jazz vespers were held at various locations including Central Synagogue. In 1968, jazz ministry had become fully established in Saint Peter's Lutheran Church, on Lexington Avenue in New York City. Jazz musicians including Duke Ellington, Thelonious Monk, John Coltrane, Dizzy Gillespie, Miles Davis, Charles Mingus, Billy Strayhorn attended and played regularly at Jazz vespers. In 1975 Documentary Educational Resources published a portrait of Rev. Gensel which was filmed over the course of 5 years; the documentary records Duke Ellington's last concert and funeral. At Saint Peter's Lutheran Church Rev. Gensel also founded