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
Eat a Peach saving it for a possible solo album he assumed he would one day record. "One Way Out" was recorded on June 27, 1971 at the band's final concert at the Fillmore East, which was shut down after that date, and "Trouble No More" and "Mountain Jam" were culled from the band's March performances. "Mountain Jam" was always intended for inclusion on the band's next album; the band teased its appearance by including the opening seconds on the fade-out of the final song on "At Fillmore East". The band considered it a signature song of the group, but they deemed the