1940s in jazz 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 music towards a more challenging "musician's music." Differing greatly from swing, early bebop divorced itself from dance music, establishing itself more as an art form but lessening its potential popular and commercial value. Since bebop was meant to be listened to, not danced to, it used faster tempos. Beboppers introduced new forms of chromaticism and dissonance into jazz; the dissonant tritone (or "flatted fifth") interval became the "most important interval of
Charlie Parker jazz standards. On November 30, 1949, Norman Granz arranged for Parker to record an album of ballads with a mixed group of jazz and chamber orchestra musicians. Six master takes from this session comprised the album "Charlie Parker with Strings": "Just Friends", "Everything Happens to Me", "April in Paris", "Summertime", "I Didn't Know What Time It Was", and "If I Should Lose You". In 1953, Parker performed at Massey Hall in Toronto, Canada, joined by Gillespie, Mingus, Powell and Roach. Unfortunately, the concert happened at the same time as a televised heavyweight boxing match between Rocky Marciano and Jersey Joe