On stage, Marty Stuart always sparkles, from his cowboy clothes to his virtuosity on the guitar and mandolin. But the country star also has a side gig, as the keeper of Nashville's memories. Stuart has built one of the world's largest private collections of country music memorabilia – 20,000 pieces in all, priceless relics of such artists as Hank Williams, Patsy Cline and Johnny Cash. Mark Strassmann reports.
