Fiddler and Blazin' Fiddles' frontman Bruce MacGregor has written a beautiful tune, which has been turned into a fundraiser for Scottish Rugby legend Doddie Weir's foundation: "My Name's Doddie," which seeks a cure for Motor Neuron Disease. Also on today's show: the story behind San Sweeney's "Unfinished Violin," new music from The Trials Of Cato, Maya De Vitry, John Smith, Rhiannon Giddens, and so much more!