The long-established queer acoustic-leaning folk-pop trio of Nate Borofsky, Doris Muramatsu and Ty Greenstein has become a quartet with the addition of JJ Jones. They've also transplanted from Brooklyn to Atlanta. But even with three girls and a boy, the sound is still sweet and sensitive and most of all harmonious, a bit like a cross between the Indigo Girls and Simon & Garfunkel. They've recently taken to working with raunchy comic Margaret Cho, so you know, they're not that innocent. Thursday, Nov. 3, at 8 p.m. The Barns at Wolf Trap, 1645 Trap Road, Vienna. Tickets are $20. Call 703-255-1900 or visit wolftrap.org.