Grateful Dead
The first United States-grown rock group of that [psychedelic] type, the 
Grateful Dead, was generated as a British intelligence operation by the 
Occult Bureau of [Aldous] Huxley and [Gregory] Bateson out of the Palo Alto 
Veteran's Hospital where they were doing LSD and related experiments. 
- Why would British intelligence want to put out a rock group? 
This is part of the Satanism business. Call it the counterculture. Call it the 
Dionysius model of the counterculture. Rock [music] is essentially a revival of 
the ancient Dionysic, Bacchic rituals. Lots of people for long periods of time 
in that kind of particular rhythmic ritual which was probably struck upon 
empirically many thousands of years ago for this type of cult. It does have a 
relationship to the Alpha rhythms of the brain. It does produce these sorts of 
states. If combined with a little alcohol and more, shall we say, mood shaping 
substances, with youth, with funny sex, this does produce a profound change of a 
countercultural type. Another word for it: New Age. The longer term: Age of 
Aquarius. People were experimenting with various utopian models, constructing 
small groups experimentally which were considered New Age types.
---- Lyndon LaRouche on the 60's counter-culture, rock 
music, LSD and the occult (see also this...)