National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.National Folk Festival 2015 - Photo by Ben Appleton.