At Fillmore East During this time, the group began struggling with drug addictions. Everyone in the group, with the exception of the brothers, was also struggling to make a living (vocalist Gregg Allman received more money from royalty payments and Duane more from session work). In one incident, tour manager Twiggs Lyndon stabbed and killed a promoter for not paying the band; he later claimed temporary insanity. Their fortunes began to change over the course of 1971, where the band's average earnings doubled. The Allman Brothers Band had first played Fillmore East in December 1969, opening for Blood, Sweat & Tears for three
At Fillmore East October 10, 1992, "The Fillmore Concerts", an expanded version of "At Fillmore East", was released as a two-disc CD. It includes all the songs from the original album, plus the live songs from "Eat a Peach"—"One Way Out", "Trouble No More", and "Mountain Jam"—which were recorded at the same concerts, and two additional tracks, "Don't Keep Me Wonderin'" and "Drunken Hearted Boy". All the music was remixed from the concert recordings, and a few of the songs are alternate takes, so the same songs sound somewhat different than on the original album. The Deluxe Edition was released as a two-disc