Scotland’s Old Blind Dogs don’t fit easily into any of the standard “Celtic” folk slots. Their varied arrangements and unusual rhythm section (various kinds of hand drums and electric bass, giving the music a more syncopated, jazzy foundation) separate them from traditional acoustic groups, established folk-rock bands, and New Age-y fusion outfits. Their instrumental pieces are as likely to feature a saxophone playing the lead melody line as a fiddle or bagpipe. But half the band’s repertoire consists of traditional ballads, such as “Parcel of Rogues” and “Johnny O’ Braidislee,” which are treated more conservatively, after all, you’ve gotta hear the words to follow the story. The funky jigs ‘n’ reels begin at 8 p.m. at Fadó, 808 7th St. NW. Free. (202) 789-0066. (Ken Roseman)