At Fillmore East June 27, the Fillmore East closed, and the band were invited to play a final, invitation-only concert, along with Edgar Winter, the Beach Boys and Country Joe McDonald. The Beach Boys initially refused to perform unless they headlined the event, but Graham refused, telling them that the Allman Brothers would be closing the show, and they were free to leave if they disagreed. The Allman Brothers' performance was used for additional tracks when an expanded version of "At Fillmore East", "The Fillmore Concerts", was reissued on CD. "At Fillmore East" showcases the band's eclectic mixture of blues, rock, country, and
At Fillmore East doing the [studio] records, and I think, consequently, our next album will be ... a live recording, to get some of that natural fire on it." "We were not intentionally trying to buck the system, but keeping each song down to 3:14 just didn't work for us," remembered Gregg Allman. "And we realized that the audience was a big part of what we did, which couldn't be duplicated in a studio. A lightbulb finally went off; we needed to make a live album." "At Fillmore East" was recorded over two nights — March 12 and 13, 1971 — for which