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The macro dub infection that has infiltrated the indie scene can’t be traced to one point of origin, but there is one group primarily responsible for its spread: Moonshake. Led by Dave Callahan, this English quintet spreads the gospel of Can (whose “Moonshake” provided its moniker), reads from the screeds of Lee “Scratch” Perry, and preaches from the pulpit of pantheistic pop: Whatever the source, if you can sample it, loop it, and drop a beat behind it, you can get the dead to move. With its new album, Dirty and Divine, Moonshake further refines its groove theory, even enlisting Neu!’s metronomic, human beatbox, Michael Rother. Callahan’s singing still sounds as if he’s coughing up a furball, but his convulsive delivery gives his lyrics, both personal and political, a potent urgency. With New Kingdom and Ultra Bide at 8:30 p.m. at the Black Cat, 1831 14th St. NW. $6. (202) 667-7960. (CP)