Cappella Clausura, an a cappella ensemble of eight to sixteen singers who perform music by Medieval, Renaissance, Baroque, Classical, Romantic, and Contemporary composers, present Hildegard’s music for Saint Ursula at Grace Church in Newton. Hildegard von Bingen – the “patron saint” of Cappella – wrote an abundance of vivid music and poetry about Saint Ursula. These chants celebrate womanhood and independence. In this program, Cappella Clausura presents Hildegard’s music for Saint Ursula interspersed with micro-commissions from five emerging composers from the Boston area.