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
Live at the Fillmore East, March 7, 1970: It's About that Time Festiva De Juan Pins") to document Davis' use of electric instruments in a concert setting. Davis performed on the nights of March 6 and 7 at Fillmore East; Columbia Records recorded both nights' concerts, but as of 2008 has only released the March 7 show. A number of the compositions performed during the concert appear on "Bitches Brew", which had not yet been released at the time of this concert. These performances were as support to Neil Young and Crazy Horse and the Steve Miller Band. Young's performance has also been released as a live album. All compositions by Miles