The Oratorio Society of New York has announced its 2021-22 season. The season opens with a concert featuring Pärt’s “Berliner Messe” and “Two Slavonic Dances;” Britten’s “Festival Te Deum” and “Rejoice in the Lamb;” and Gabrieli’s “Jubilate Deo, omnis terra.” Kent Tritle, David Rosenmeyer, and William Janiszewski conduct. Performance Date: Nov. 9, 2021 Next up is a performance of Händel’s {…}