Allman Brothers Band

He also worked with Styx, Deep Purple, Bon Jovi, Lynyrd Skynyrd and many other legendary acts.

The late Allman Brothers Band guitarist opened an important door.

"I consider it an honor to have crossed musical paths with him," said the Doobie Brothers' Michael McDonald.

With its unprecedented third set, this became one of their longest-ever concerts.

Co-founder of the Allman Brothers Band was 80 years old.

He'd been suffering from cancer and chronic obstructive pulmonary disease.

"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.

Our list tends to focus more on the rootsy side of the Allman Brothers Band's sound – and that's fitting.

The group's long, complicated history isn't always an easy one to navigate.