In the 1970s, certain pundits predicted that reggae would soon become the dominant genre of popular music. That may have happened outside the United States, where Jamaica’s coolest export has influenced a lion’s share of global pop music. Here, though, it’s another story. Too bad, because Jamaican duo Wailing Souls, which has been making music since the early ’70s (they once recorded for Bob Marley’s Tuff Gong label), make the kind of tuneful, accessible old-school reggae that probably got those pundits all worked up back when. The duo’s newest CD, Equality (Reggae Blitz), provides a good example: Its insistent vocals, soulful harmonies and an irresistibly lithe body-swaying beat will carry you away. Besides, how can you resist two guys who go by the names of “Bread” and “Pipe”? Wailing Souls play Harlow’s, 2708 J St., at 10 p.m. Saturday, Dec. 2. Tickets are $15 advance, $18 at the door.