PilgrimAmazon. com Marty Stuart has always been a terrific singer and picker (as well as a smart, ardent country music historian and collector), but only rarely has he written songs worthy of his other talents. However, on The Pilgrim, a concept album that tells a true story from Stuart's Mississippi hometown, he has finally found a theme to inspire a whole collection of substantial songs. The title character falls in love with a woman at work, discovers too