Filmmaker Ken Burns invited some of country music's finest artists to gather at Ryman Auditorium to celebrate the launch of his PBS series Country Music. Burns curated an evening of selected highlights from the series combined with performances of the music's iconic songs by some of country's finest artists including Dierks Bentley, Rosanne Cash, Vince Gill, Kathy Mattea, Marty Stuart, and more. The evening is a musical journey tracing the evolution...