Cathedral of St. John the Divine’s 2019-20 season of Great Music in a Great Space will begin later this month with “Music for a Gothic Space.” Kent Tritle will lead the a cappella concert, featuring the acclaimed New York-based ensemble Musica Sacra. The program is set to include Machaut’s “Messe de Nostre Dame,” hauntingly beautiful motets of Josquin des Prez, {…}