GOAT's new album, Commune, comes out Sept. 23 on Sub Pop and Rocket Recordings. Tammy Karlsson/Courtesy of the artist hide caption

itoggle caption Tammy Karlsson/Courtesy of the artist

A group of Nile Project musicians play together at the Ndere Cultural Centre, Kampala, Uganda in January 2013. Left to right: Dina El Wedidi, Dafaalla El Hag, Lawrence Okello, Kasiva Mutua. Julie Caine hide caption

itoggle caption Julie Caine

Between 2006 and 2010, Jason Hamacher made many trips to Syria to photograph and record ancient chants. Jason Hamacher/Lost Origins Productions hide caption

itoggle caption Jason Hamacher/Lost Origins Productions