The London-based a cappella choir Stile Antico brings a program of Christmas music to Cambridge, Mass. Marco Borggreve hide caption

itoggle caption Marco Borggreve

Members of Stile Antico at the Savannah Music Festival 2011. Frank Stewart/courtesy of Savannah Music Festival hide caption

itoggle caption Frank Stewart/courtesy of Savannah Music Festival
Abby Verbosky/NPR