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
Miles Davis he accompanied a singer. In 1945, he replaced Dizzy Gillespie in Charlie Parker's quintet. On November 26, Davis participated in several recording sessions as part of Parker's group Reboppers that also involved Gillespie and Max Roach, displaying hints of the style he would become known for. In Parker's song "Now's the Time", Davis played a solo that anticipated cool jazz. He then joined a big band led by Benny Carter, performing in St. Louis and remaining with the band in California. He again played with Parker and Gillespie. In Los Angeles, Parker had a nervous breakdown that put him in