Hmm, I could agree with that somewhat. But I think it's because they were so influenced by country and western.
But can California claim Tom Petty?
I know Rondstadt's album, "Living in the USA"was mostly covers, but that album LIVED on my turntable almost my entire 10th grade year.
Loved Fleetwood Mac back then also, but loved Buckingham Nicks more. They were extremely popular in Alabama and sold out three shows here before they joined the Mac.
I'll cede some ground in the 70's music contest to Southern Cali.
I think Warren Zevon wrote most of Linda’s hits. My parents loved her albums with Nelson Riddle.
If Tom Petty wanted to do a country album, it would have been a huge hit.
He could do Hank Williams songs justice better than anyone.
But remember, the south does not get to claim country AND western music exclusively. After all it's half western cowboy music.
Let's team up and agree that Southern Cal and Southern rock were superior to Disco, gay rock (Bowie excluded), and stupid music like Tony Oralando and "The Night the Lights Went Out in Georgia." and crap like that.
The seventies had few bright spots if you ask me.
Only two Californians in that group of musicians- Jackson Browne and Lindsey Buckingham- but as a group they were all part of the LA sound that developed here in the late 60s early 70s.
YouTube has a good history of the early days and cross collaboration among them. IIRC Eagles began as a backup band for Ronstadt when she was doing a Disneyland show.