They were a social engineering project of the State.
A way to distribute loads of LSD to whole generations.
If you weren't stoned you probably wouldn't think the music was any good.
Now the people who liked it then are hooked on the "set and setting" from the initial experience so it will trigger positive memories.
They did experiments with audiences, speakers and drugs.
Audience members were guinea pigs.
"State" "Agency" is very adept at creating cults. that's what they do.
[cf anti - Trump hysteria / cult]
Yes, connects with San Fransisco Satanism and the Presidio [child abuse] and Burning man and Barlow.l [spook]
Steve Outtrim – “Shadow History of Burners, Pt 7: Social Engineering on the Electronic Frontier""