Choirs from St. Joseph’s Seminary, Dunwoodie, N.Y., and St. Vladimir’s Orthodox Theological Seminary, Crestwood, N.Y., will jointly present an a cappella concert titled “Magnificat: Hymns to the Mother of God from the East and West,” Nov. 25, 7:30 p.m. at St. Jean Baptiste Church, 184 East 76th Street in Manhattan. Tickets are $25 each and are available at www.svots.edu or at the door.