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The immensely talented French-Cuban twins who make up soul act Ibeyi—Lisa-Kaindé and Naomi Diaz—have spent the past year digging through music’s underground to create mysterious and moody songs. With a name that means “twins” in Yoruba, the sister act explores the slightly unsettling unknown on songs like “River,” in which they seek spiritual renewal against a background of looped synths, and its latest release “Stranger Lover,” in which the pair tries to navigate a failing relationship. But even though these sisters mirror each other in appearance, their styles differ and blend to make Ibeyi a beautiful collaboration. While Naomi is more interested in rap beats and plays traditional Cuban percussion instruments, Lisa, the primary vocalist, infuses slower tempoed works with her sultry delivery. Ibeyi performs with Vicktor Taiwò at 7 p.m. at 9:30 Club, 815 V St. NW. $20. (202) 265-0930. 930.com.