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Long before Afrika Bambaataa created his own electro-funk rap with such early ’80s singles as “Planet Rock” and “World Destruction,” this Bronx, N.Y., resident was pioneering the art of hiphop DJing at outer-borough community-center parties. Not content merely to play songs, Bambaataa eclectically mixed his own audio collages using beats, guitar lines, and vocal excerpts from sources like Kraftwerk, spaghetti-western soundtracks, Jimmy Castor, and James Brown. Tonight, Bambaataa returns to his roots as the headlining DJ at the weekly techno party, “Buzz.” He’ll be joined by original hiphop break-dancers from the Rock Steady Crew, and six techno DJs who’ll be spinning classic old-school (i.e., ’70s and ’80s) cuts. At 10 p.m. at the Capitol Ballroom, 1015 Half St. SE. $7-9. (202) 554-1500. (Steve Kiviat)