The innovative hard bop of Jackie McLean began to evolve and take on a harder edge as the early-1960s progressed. Inspired by Ornette Coleman, the alto saxophonist began to venture gradually into the realm of the avant-garde, but on his own terms, never fully relinquishing a grounding in a soulful sense swing and chordal structures. With his 1963 album 'Destination... Out!' he created a masterpiece of inside-out jazz with a unique quintet featuring Grachan Moncur III on trombone, Bobby Hutcherson on vibraphone, Larry Ridley on bass, and Roy Hayes on drums.