The classic logo-music of all time is of course NBC’s “bing-boing-bing” chimes, (unfortunately not included in the YouTube emebed below). Just 3 notes. It’s all you need to brand a network.
Somewhere along the way, though, it seems that log-music producers started trying to top each other. Music had to be “cutting edger”, “forward looking”, and “aspirational”. It was the 70s, outer space was big, so everything had lots of synthesizers and reverb. Logo music was as it you were trying to score the Apollo moon landing in 5 seconds.
Too bad more log-music producers didn’t try a Star Wars-eqsue symphonic approach, instead we got creepy sound effects and synthesizers. But they do bring back memories!