In Celebration Of May Day,

In celebration of May Day, live from NPR's Studio 4A, Martin and our audience welcome the fresh and sprightly sound of the Dufay Collective. Founded nine years ago to explore the rich and varied repertoire of the Middle Ages and the Renaissance, the six-member Dufay Collective works without a director. The result, says The Independent newspaper of London, is "a medieval 'jam' session" that's "astonishingly inventive." (NPR)