Besides, it's Quincy Jones, one of the great soundtrack composers of the 20th Century!
If you're looking for a copy, it's available on the Smackwater Jack album!
Here's what Wikipedia has to say about the music on the series:
The opening theme music was written by Quincy Jones and was the first synthesizer-based television theme song, though in 1971, Jones recorded a fuller four-minute band version for the album Smackwater Jack. This recording was then edited and used for the opening credits of the fifth through eighth seasons (1971–75). (The entire album track can be heard in the fifth-season episode "Unreasonable Facsimile" as Ironside and team track a suspect on the streets of San Francisco.) In addition to the opening theme music, Quincy Jones composed the entire score for the first eight episodes. Oliver Nelson took over those duties up to the end of the winter to spring 1972 episodes. Nelson was then replaced by Marty Paich for all the episodes from the beginning of the fall of that year up until the last episode that was produced in the spring of 1974. The song "Even When you Cry" with music by Quincy Jones and lyrics by Alan Bergman and Marilyn Bergman was performed by James Farentino in the episode 'Something for Nothing' while Marcia Strassman had already sung it off-screen in the earlier episode 'The Man Who Believed' both during season 1.I wonder if that Season One score has been released?