THE LOUDERMILKS These days any appearance by the Edwards boys and their crack rhythm section is cause for suds-hoisting celebration, and a reminder that brothers Alan and Chad remain among the best songwriters this region’s produced. Jon Pareles of the New York Times wrote of a 2002 show by Lou Ford, their previous incarnation, that the brothers “took turns singing one surly, neatly phrased breakup song after another, turning accusations into aphorisms,” and I couldn’t have said it better (so I didn’t). In case you’re curious, the Loudermilks moniker is homage to the Louvin Brothers (nee Charlie and Ira Loudermilk), and there are moments here, too, when Edwards’ brotherly harmonies can send a chill straight through your spine. With the also superb John Howie Jr. and the Rosewood Bluff and Bart Lattimore (solo). $7. Snug Harbor.