Tonight’s show in the D.C. Blues Society’s “Founders Series” features a rare appearance by 79-year-old Archie Edwards from Union Hall, Va. Tired of nightclub drunks and young, white American guitar know-it-alls, this proud, storytelling guitar picker has mostly limited his playing this decade to European festivals and Saturday jam sessions in his northeast D.C. barbershop. Edwards, who performed as a kid at square dances when they were identified with the black community, today melds that rural Piedmont strum-and-foot-stomp sound with the relaxed approach of the Mississippi John Hurt records he heard on his family’s Victrola. The “Founders Series” of six acoustic shows continues through next month with other artists who helped start the society in the local music scene. With Mike Baytop at 8:30 p.m. at City Blues, 2651 Connecticut Ave. NW. $5. (202) 232-2300. (Steve Kiviat)