Emeka Ogboh’s “Market Symphony” exhibition will be open at the Smithsonian’s National Museum of African Art, Wednesday, Feb. 3, 2016, through Sept. 24, 2016. Commissioned by the museum, Ogboh’s site-specific sound-artwork draws on the commercial cries and urban ambiance of Balogun—a sprawling open-air market in Lagos, Nigeria, Africa’s largest and most populated city. The artist invites museum visitors to experience the distinctive sounds