Cappella Romana

This formidable vocal ensemble from the Pacific Northwest has carved a niche for itself in the early-music world by specializing in eastern Christian works, with a focus on neglected Slavic and Byzantine music. In anticipation of Holy Week, the group stops by the Met's auditorium with a lineup of rarities written in Jerusalem between the seventh and ninth centuries, as well as excerpts from the Great Vespers for the Feast of Saint Catherine of Alexandria dating back to 15th-century Egypt.