The song was written by Fred Steiner
who also wrote for a number of television series, including many episodes of the original Star Trek series. Perhaps the best-known of Steiner's works, "Park Avenue Beat", is the Perry Mason TV theme. It was used from 1957 to 1966 for the original Perry Mason series and was re-recorded by Dick DeBenedictis for the subsequent made-for-TV movies in 1985. The tune was covered by The Blues Brothers for the soundtrack of the 1998 film Blues Brothers 2000. Steiner said he wrote such a jazzy theme because he envisioned lawyer-sleuth Mason as a flamboyant, film noir type often out on the town, but Mason as portrayed in the series was a somewhat reserved character seen mostly in his office or in court.