Gregory Porter (center) performs with saxophonist Yohsuke Satoh at the annual Strings of Autumn International Music Festival in Prague. Petra Hajska/Courtesy of the artist hide caption

itoggle caption Petra Hajska/Courtesy of the artist

Gregory Porter's latest album is entitled Liquid Spirit. Shawn Peters /Courtesy of the artist hide caption

itoggle caption Shawn Peters /Courtesy of the artist

Gregory Porter's new album, Liquid Spirit, comes out Sept. 17. Shawn Peters/Courtesy of the artist hide caption

itoggle caption Shawn Peters/Courtesy of the artist