Did you read the OP?
Woody Guthrie’s “Do Re Mi” has been mentioned; but I like Ry Cooder’s version–including Flaco Jimenez …
Robin Williamson (once of the Incredible String Band), wrote “Pacheco” about a California visit.
Sorry, forgot about it. Still, I wanted to post a link to the song on YouTube.
Serves me right for not looking that one up. I had always thought it was Wolf’s. It is a great song.
Dory Previn: “Coldwater Canyon”
Love: “Maybe the People Would Be the Times or Between Clark and Hilldale” (Streets in greater Los Angeles. Between Clark and Hilldale is the block on Sunset Boulevard where the Whisky a Go Go was (is?) located.)
John Mayall: “Walking on Sunset”. (Another reference to Sunset Boulevard.)
Robert Plant: “29 Palms”.
I’m surprised no one has mentioned L.A. Woman by the Doors.