Altan Is An Irish Folk And Traditional Music Group Which Formed In Gweedore County Donegal In 1987. The Popular Outfit Who Are Led By The World-Renowned Fiddler And Vocalist Mairéad Ní Mhaonaigh Have Been Driven By Many Critically Acclaimed Albums And A Relentless Touring Schedule. They Emerged During The 1990s As One Of Ireland’s Premiere Traditional Musical Groups And Have Since Sold Millions Of Records Worldwide.