O.B. Buchana has yet to establish much of a name up north, but he’s one of the leading lights of soul-blues, also called southern soul—a genre that thrives on a circuit that’s still mostly regional and somewhat isolated. His voice is thick and gritty, and he favors bouncy, good-timey paeans to all-night juking and double entendre-laden odes to sexual prowess (both his own and his partners’), leavened by the occasional steamy boudoir ballad. It’s the kind of thing that some older-­school blues and deep-soul aficionados find irredeemably arch, if not downright puerile, but that hard-core fans of the genre never seem to tire of.

O.B. Buchana Sat 6/8, 3 PM, Juke Joint Stage