In 1973, the Allman Brothers Band were one of the most popular in America: they headlined the Watkins Glen Summer Jam, attended by an estimated 600,000 people and their album Brothers and Sisters was a number one for five weeks on the Billboard listings that summer. The single 'Ramblin' Man' hit #2 in October. The group made the cover of Newsweek. Rolling Stone named them 'band of the year'. Their story can only be described as 'volatile'. Always...