Allman Brothers Band

"People may find that hard to believe, but it had never happened," Warren Haynes tells UCR. "It was history."

Deaths of Duane Allman and Berry Oakley still loomed in 1973.

Set includes material recorded by Grateful Dead's soundman at famous New York City venue a year before more famous shows.

The group had conclusively ground to a halt three years earlier. Or so it seemed.

LP boasts a coherent feeling, but change was afoot.

This concert followed 45 years together, millions of albums sold and countless miles.

To say they were up against a wall in the fall of 1972 would be something of an understatement.