Fresh from the success of “Brothers and Sisters,” the Allman Brothers Band did what any ’70s rock band might — they set about destroying themselves, as drummer Butch Trucks tells Alan Paul ...

On Nov. 2, 1972, the Allman Brothers Band made their live debut with a new lineup. Duane Allman, the band’s transcendent guitarist and leader, had died a year earlier in a motorcycle accident.

And, in 1976, Gregg testifies against an Allman Brothers crew member at the man’s drug trial; the rest of the band publicly denounces Gregg. The Brothers break up for the first of many times and ...