(from left) Gregg Allman, Dickey Betts and Butch Trucks. | Credit: Herb Kossover/GettyImages Dudek doesn’t recall many details about the guitars used on “Jessica,” only that he played “an ...

captured on the Dickey Betts and Great Southern live album “Southern Jam: New York 1978.” It’s “Jessica” as a speeding locomotive with a “Southbound” detour in the middle.

Dickey Betts, the singer-guitarist who co-founded ... with his songs such as “Ramblin’ Man,” “Pony Boy” and “Jessica.” “Pony ...