DAVE ALVIN AT THE SOUTH STREET SEAPORT

DAVE ALVIN (Tonight) In the Blasters, in X and now on his own, Mr. Alvin has written and sung about outcasts, lovers and criminals, some of the people who share the road with an itinerant musician. He sets his narratives in country and rockabilly tunes that strive for classic American simplicity, though his words detail an uncertain moral landscape. At 7, South Street Seaport, Pier 17, Fulton and South Streets, Lower Manhattan, (212) 835-2789; free. (Jon Pareles)