Here are some clips from YouTube that you may not have seen. (Or you may have if you're an inveterate haunter of YouTube.) This first one comes from The Music Box Project, an oral history project compiling stories of women who play traditional music. Murphy and Red play Murphy's original song "When My Mama Sang To Me" in their studio in Winchester, VA.
This second clip is from the Spirit of the Suwanee festival in 1989. Red and Murphy sing "East Virginia Blues" with Karen Spence on tenor and playing bass, George Custer on fiddle, and Tuck Tucker on dobro.
This third clip is from the same festival. It's Murphy's song "How They Loved to Sing"