Johnny Staccato

From Wikipedia:

Johnny Staccato is an American private detective series starring John Cassavetes which ran for 27 episodes on NBC from September 10, 1959 through March 24, 1960.

Titular character Johnny Staccato, played by John Cassavetes, is a jazz pianist/private detective. The setting for many episodes is a Greenwich Village jazz club belonging to his friend, Waldo, played by Eduardo Ciannelli. The show featured many musicians, such as Barney Kessel, Shelly Manne, Red Mitchell, Red Norvo, and Johnny Williams. (Ironically, given the show's New York setting, all of these men were closely identified with the West Coast jazz scene, as the show was filmed largely in Los Angeles.) Elmer Bernstein composed both of the main theme tunes used and Stanley Wilson was music supervisor. Cassavetes also directed five episodes.

After its initial airing on NBC, ABC presented reruns of the series from March 27 to September 25, 1960.