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The D.C. Jazz Fest has begun again, and amid its traditional lineup you might find yourself yearning for something a little more bananas. Look to Lost Civilizations, the super-improvised collaboration between reed player Mike Sebastian and multi-instrumentalist T. A. Zook. For this performance—and to perhaps jack up the weird factor to record levels of strange—the pair ropes in ambient trio Sansyou and instrumental synth duo Cigarbox Planetarium. It’s like nothing you’ve heard before, because, well, it won’t exist before Thursday night. You’ve got another week to enjoy traditional jazz; spend tonight listening to the weird stuff.

Lost Civilizations performs with Sansyou and Cigarbox Planetarium at the Tree House Lounge, 1006 Florida Ave. NE. $8. (202) 398-7700. treehouselounge.com