Playing Southern blues rock, the Royal Southern Brotherhood are musical heavyweights. The members have either descended from the rock or they’ve had a close association with it throughout their lives, as their well-known hit “Keep On Rockin” dictates. Devon Allman, Cyril Neville, Mike Zito, and Charlie Wooten make up the band. On Sept. 14, the ensemble makes a local stop in New York at Sullivan Hall. Doors will open at 8 p.m., tickets will be $18, and the show begins at 8:30 p.m.