This three-CD set documents some historic country-blues performances by the likes of Mississippi John Hurt, Skip James, Bukka White, Mississippi Fred McDowell and Mance Lipscomb. The urban side of things is well represented by Lightnin’ Hopkins, John Lee Hooker, Memphis Slim, Muddy Waters with Otis Spann, The Paul Butterfield Blues Band and The Chambers Brothers turning in a riveting rendition of “See See Rider.” Included here are 11 previously unreleased tracks. A must for acoustic-blues fans.