Kind of Blue Adderley had joined in the fall of 1957, with tenor saxophonist Coltrane returning at the beginning of 1958; pianist Evans had replaced Red Garland in April 1958, but quit in November to be replaced in turn by Kelly; and drummer Cobb had been hired in May 1958. The Davis band played a mixture of pop standards and bebop originals by Charlie Parker, Thelonious Monk, Dizzy Gillespie, and Tadd Dameron. As with all bebop-based jazz, Davis's groups improvised on the chord changes of a given song. Davis was one of many jazz musicians growing dissatisfied with bebop, however, and saw its
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