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
Lighthouse (band) May 14, 1969, at the Rock Pile in Toronto, introduced by Duke Ellington with the words, "I'm beginning to see the Light...house". The band originally consisted of 13 members: One of the first Lighthouse concerts was at Carnegie Hall, and in its first year the band also played at Fillmore East, Fillmore West, Toronto, Boston, the Atlantic City Pop Festival, and the Monterey and Newport Jazz Festivals. A free concert at Toronto City Hall in the summer of 1969 drew a reported crowd of 25,000. Their first album, "Lighthouse", was released in 1969 by RCA from RCA's Toronto Eastern Sound