St. Michael’s Church of Auburn will be filled with sparkling Yuletide music from the Celtic tradition when folk duo Castlebay, featuring Celtic harpist and vocalist Julia Lane, and members of the Maine Harp Circle perform on Sunday, November 27 at 3 p.m. The lilting sound of Irish flute, Celtic harp, fiddle and guitar will mingle with vibrant songs of revelry and wonder in a program that will include joyous and mysterious seasonal songs and tunes from Ireland, Scotland and the British Isles, as well as more familiar holiday favorites. The Maine Harp Circle is a group of local Celtic harp enthusiasts led by Melanie Lee. Ancestor of the orchestral harp and a vehicle for musical celebration for over a thousand years, the Celtic harp is one of the most venerable instruments of the British Isles, used by bards and minstrels from at least the 4th century.