http://www.wolfgangsvault.com/grateful- ... -1966.htmlAs 1966 began, San Francisco was rapidly becoming the epicenter of a cultural and musical shift that would impact the world. Dance hall promoters like Bill Graham and Chet Helms were in the early stages of opening venues where local bands could perform for the throngs of young people looking to dance socialize and listen to live music. Local writer Ken Kesey and his friends (known as The Merry Pranksters) were doing the same on a smaller scale, but adding high quality LSD to the mix, which was then still legal and readily available. As Kesey's parties, or "Acid Tests" as they were called, began attracting more and more adventurous people, it was inevitable that The Merry Pranksters parties would merge with local dance hall venues, which is exactly what happened on January 8, 1966.
On that night The Pranksters and their Acid Test house band, The Grateful Dead, descended on Bill Graham's Fillmore Auditorium, loading in piles of sound equipment, projectors and strobe lights and ready to turn attendees on to LSD while subjecting them to sensory bombardment. The band had literally just become The Grateful Dead, having recently changed their name from The Warlocks, and was just one component of the overall experience. Ken Kesey, strategically overseeing everything, was also plugged in to the P.A. system and could ramble stream-of-consciousness commentary over the proceedings. Various Pranksters were also equipped with roving microphones, which could be fed in and out at any time. Mass free-form creativity while under the influence was the goal. Often it was utter chaos, sometimes it was divinely inspired and for the vast majority of attendees, it was incredibly liberating to "freak freely" with others who felt the same.
While no mere audio recording could ever capture an Acid Test experience, this one does manage to capture some of the spontaneous free-formlessness and remains one of the earliest (if not the earliest) examples of a live Grateful Dead recording, when they were essentially still a cover band playing for dancers.

The most dangerous traps are the ones you set for yourself. - Phillip Marlowe