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
Glass Harp (band) Northeast Ohio. This led to both supporting and headlining shows nationally from The Fillmore East to The Winterland Ballroom. On November 21, 1971, the band played an opening spot for The Kinks at New York City's prestigious Carnegie Hall, receiving a thunderous ovation at the end of their hour-long set. This performance was released as the "Live At Carnegie Hall" album in 1997. 1972 would be a pivotal year for the group. Having recently released a second album ("Synergy") Glass Harp were asked to perform a live concert on PBS in February. This broadcast would become groundbreaking in that it