To Dickey Betts, Duane’s dad and one of the Allmans original guitarists. The droopy mustache, the cowboy hat, the Western shirt, the turquoise necklace, all suggested Dickey (who died in April).

Dickey Betts, a driving force behind the Allman Brothers Band — pioneers of Southern rock and key influencers of the jam band scene — will be honored with an all-star tribute concert following ...