This is the archetype. Before it, Southern rock as a separate genre was an amorphous curiosity. After it, redneck hippies with chops were entitled to all the worship that had previously been thrown at Brit hippies with chops.
Read more about At Fillmore East on Rolling Stone
Whereas most great live rock albums are about energy, At Fillmore East is like a great live jazz session, where the pleasure comes from the musicians' interaction and playing. The great thing about that is, the original album that brought the Allmans so much acclaim is as notable for its clever studio editing as it is for its performances.
Read more about At Fillmore East on All Music Guide