Traditional event features choral music/arrangements by Flummerfelt, Susa, Near, Emery, A. Carter, Hadley, Chilcott, Britten, Tavener, Willcocks; organ music by Chapman, Purvis, and M. Dell. Organist and director Stephen Williams, with harpist Andrea Wittchen and flutist Elaine Martin. Tuesday, December 13 at 7:30 p.m., St. John's Lutheran Church, 37 S. 5th Street in downtown Allentown. All are invited.