This CD is a compilation of two separate recording sessions, one led by Gerry Mulligan with Chet Baker on trumpet, the other by the Chubby Jackson Big Band. Half the Mulligan-Baker quartet material was recorded at the Black Hawk in San Francisco in September 1952, the other half four months later in LA. The personnel remains the same for both. The two horn men, along with Carson Smith (b) and Chico Hamilton (d) were laying down the foundation of what soon would be referred to as West Coast or Cool jazz, a sound just as swinging as its East coast rival, but tempered somewhat by a more introspective rhythm approach (the use of brushes over sticks by the drummer, for example) and in the case of this group, no piano. Many who disparage West Coast jazz make the claim that it was cold, pensive, and unswinging, which makes one wonder if such people ever really listened to the music. Such tunes as BARK FOR BARKSDALE, TURNSTILE, and LIMELIGHT are modern dynamos, far from retiring wallflowers. Baker, who supposedly couldn't read music, is truly inspired on these early sides. 　　The Jackson sides were recorded at one session for Prestige in 1950 in New York and feature an all-star modern big band, including Mulligan (bar sax) Howard McGhee (tp) Zoot Sims (ts) JJ Johnson (tb) and Jackson (b) among many other top players. Best might be the up-tempo rouser FLYING THE COOP, written by Tiny Kahn, a performance that sets the band off well, especially Sims and Johnson. I MAY BE WRONG is also a great tune done to perfection here, thanks to Mulligan's playing and arranging. 　　The music on this CD is fresh and exciting. The playing is top-notch. This is a must-have CD for anyone interested in modern jazz, especially during its earlier years.