As one half of the Indigo Girls, Amy Ray wrote a lot of OK folk songs about reincarnation, astronomy, and coming out, making a sideways case that lesbian folk pop isn’t for everyone. But Ray’s solo albums are hard enough that even tough guys will let loose an enthusiastic fist-pump or two upon hearing “Pennies on the Track” and “Put It Out for Good,” from 2005’s Prom. With the exception of “Let it Ring,” which at least manages to make a mandolin sound angry, sexy, and dangerous, Prom is all about tight, minor-key chugging and rebellious lyrics. 2008’s Didn’t It Feel Kinder is disappointingly soft by comparison, but Ray’s had a whole year to tour it, which almost guarantees that her show at the Black Cat—a venue that screams distortion–will be a heavy one. AMY RAY PERFORMS WITH BELLAFEA AT 8 P.M. AT THE BLACK CAT, 1811 14TH ST. NW. $15. (202) 667-4490.