Peter Paul & Mary celebrate folk music s past present and future in this companion to the special produced and aired as part of PBS s Great Performances. It s a star-studded event that finds the trio collaborating with an assortment of talented friends including ex-Weavers Ronnie Gilbert and Fred Hellerman as well as Buddy Mondlock Odetta Tom Paxton John Sebastian and others. Featured tracks: The Times They Are a Changin The Great Mandala (The Wheel of Life) and Virtual Party .