When a punk singer has a chip on his shoulder or the crowd misbehaves, the singer and his audience can develop an adversarial relationship. In the case of Self Defense Family, singer Patrick Kindlon’s entire persona is that he’s a raging asshole. Self-aggrandizing and petty, he goes on sanctimonious, oddly compelling rants in between songs, which sound sludgy and dense compared to their contemporaries. It’s a strange band, the sort that wins over naysayers by commanding the stage. At DC9, Self Defense Family shares top billing with Sweden’s Makthaverskan, an entertaining band in a more conventional sense. Singer Maja Milner has a voice that soars, defiant and heartbreaking, over songs that combine punk with dream-pop and a touch of ‘80s synths. When Milner ends a song by belting “FUCK YOU” at the top of her lungs, you won’t know whether to shove your first into the air or cry. These bands could not be more different, really, which goes to show that there’s no music genre quite as dynamic (or strange) as punk rock. Self Defense Family performs with Makthaverskan, Creative Adult, and Trunkweed at 7:30 p.m. at DC9, 1940 9th St. NW. $10–$12. (202) 483-5000. dcnine.com.