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
Bob Northern Bob Northern Robert "Bob" Northern (born May 21, 1934), known professionally as Brother Ah, is an American jazz French hornist. Born in North Carolina and raised in The Bronx, Northern studied at the Manhattan School of Music and at the Vienna State Academy in the 1950s. He is perhaps best known as a session musician, working extensively in the 1950s and 1960s with musicians such as Donald Byrd, John Coltrane, Gil Evans, Sun Ra, McCoy Tyner, Roland Kirk, and the Jazz Composers Orchestra. He also worked with Don Cherry, Thelonious Monk, Freddie Hubbard, Miles Davis, Dizzy Gillespie, Eric Dolphy, Charlie