Grateful Dead Filmore

So much more than just the archetypal jam band, the Grateful Dead grew to become and artistic and cultural institution that existed entirely on their own terms. While the band initially came out of a psychedelic revolution in the Bay Area's musically and chemically exploratory mid-'60s, they quickly evolved from their acid rock beginnings, incorporating elements of Americana and Bakersfield country into gently majestic albums like 1970's American Beauty.