When Grammy-nominated and IBMA Award-winning songwriter and guitarist Thomm Jutz got together with his latest trans-Atlantic collaborator, the 32-time BBC Radio 2 Folk Award-nominated Martin Simpson, the pair bonded over their long-running obsession with Cecil Sharp’s 1916 and 1918 collection, “English Folk Songs from the Southern Appalachians;” particularly those tunes from singers Mary Sands and Jane Gentry.