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Roger McGuinn reprises his Bach-rock solo from “She Don’t Care About Time” on the Kennedys’ new Life Is Large, but the point of Pete and Maura’s latest is not such celebrity guests as McGuinn, Nils Lofgren, Steve Earle, Peter Holsapple, Susan Cowsill, and the Dixie Hummingbirds: It’s the homespun harmonies of these hometown heroes, which animate a folk-rock style that ranges winningly if unsurprisingly from Buddy Holly to the Byrds (complete with sitar). Tonight their guests are Vince Santoro, Jon Carroll, and J.T. Brown at 8:30 p.m. at the Birchmere, 3901 Mount Vernon Ave., Alexandria. $13.50. (703) 549-5919. (Mark Jenkins)