Randy Lewis of The Times has a nice obit on Fred Steiner (1923-2011), who composed the famous theme for the “Perry Mason” show:
Steiner said he wanted to create music for Mason, writer Erle Stanley Gardner’s legal-eagle lawyer, that projected two key facets of his personality: suave sophistication and the underlying toughness that allowed him to go head-to-head with the criminals with whom he often came into contact. The piece he came up with, titled “Park Avenue Beat,” pulsed with the power of the big city and the swagger of a beefy hero played to perfection by actor Raymond Burr.
“In those days, jazz — or in those days, rhythm and blues was the big thing — represented the seamier side of life,” Steiner told National Public Radio interviewer Nina Totenberg in 2002. “Don’t ask me why — that’s a sociological question.”