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For the minimalists who couldn’t get enough John Cage during the September celebration of the composer’s centennial, or were disappointed by the dining options near the National Gallery of Art, tonight’s concert at the Atlas Performing Arts Center offers the chance to eat, drink, and be wowed by the avant-garde. Performing tonight are yMusic and the American Classical Music Ensemble (ACME), two New York–based contemporary classical groups specializing in genre-bending collaborations. ACME’s setlist includes Caroline Shaw’s “ Limestone and Felt” for viola and cello, Don Byron’s “ Spin ,” and John Cage’s String Quartet in Four Parts. yMusic’s members are known for their chamber-pop collaborations with the likes of Bon Iver and Sufjan Stevens. At the Atlas, expect the ensemble to play tracks from its 2011 debut Beautiful Mechanical, which includes pieces by Annie Clark of St. Vincent and Ryan Lott of Son Lux. Best of all, the concert is free, part of the Library of Congress’ “Library Late” series. And with all due respect to the downtown locations where classical groups usually perform, H Street NE offers far better drinking and dining options.

yMusic and ACME perform at 9:30 p.m. at Atlas Performing Arts Center, 1333 H St. N.E. Free. Reservations required. (202) 399-7993. atlasarts.org.