Clark contributes a pair of songs, "When The Sun Goes Down," which has been covered by an array of artists since the mid-'30s, including Lonnie Johnson and Big Maceo, and "Freight Train," which was written by Elizabeth Cotten and covered by such artists as Joan Baez, Pete Seeger, and Rusty Draper.

Clark performed both songs solo with just electric guitar and vocals. These raw and authentic recordings reveal a rare and pure distillation of Gary at this most soulful. Other artists who appear on the album include Alicia Keys, Chris Cornell featuring Joy Williams, Laura Mvula, Cody Chesnutt, and Alabama Shakes.