(Piano/Vocal/Guitar Artist Songbook). This dynamic bluegrass duo earned seven IBMA awards in 2008, including the first-ever simultaneous win in the Entertainer of the Year and Emerging Artist categories. Our songbook features 12 of their best complete with both vocal lines: By the Mark * Cumberland River * Girl in the Valley * Head Hung Down * I Believe * More Than a Name on a Wall * My Savior Walks with Me Today * On the Other Side * Poor Boy Workin' Blues * When I Reach That Home up There * Winter's Come and Gone * Years Ago.