38 years ago, this happened! (Grateful Dead at the Pyramids)
Pyramids, 38 Years Ago Today
Posted by Andrew O'Brien on Wednesday September 14th, 2016 The essence of the Grateful Dead has always been spiritually inclined. From their early days as the live soundtrack of Ken Keseyand the Merry Pranksters Acid Tests, the band embraced the idea of using their music as a vehicle to express the energy of their surroundings, whether it was created by the crowd, the chemicals, or something bigger than us. Jerry Garcia explained that navigating these bizarre, experimental LSD-fueled gatherings as musicians taught them to play with a certain kind of freedom that you rarely get as a musician. We didnt have to fulfill the expectations about us, or expectations about music. It allowed us to experiment with music freely.
The Dead maintained this sense of exploration as their live shows began to attract a devoted following. In an interview in the short film A Conversation with Ken Kesey, author Ken Kesey commented on this phenomena: [the Dead] werent just playing what was on the music sheets, they were playing what was in the air. When the Dead are at their best, the vibrations that are stirred by the audience is the music that they play.
Lot's more here and some recordings, video etc.
: http://liveforlivemusic.com/features...ars-ago-today/
https://m.youtube.com/watch?feature=share&v=5QYgE631mU8. ABC report.