This collection includes some of the highlight numbers from Nashville's fifth series, spanning the many sounds of country music's past and present. On "Saved", Lennon Stella goes pop with a beat built upon creeping guitar, atmospheric synths and lyrics about being adrift at sea. With "Sourwood Mountain", Rhiannon Giddens reaches back long before TV—before records even—for a banjo-and-fiddle version of an old Appalachian love song.