The Dessoff Choirs will present J.S. Bach’s St. John Passion on May 6 at Mother AME Zion Church in Harlem. Malcolm J. Merriweather and concertmaster Katie Hyun will lead the period orchestra and soloists, tenors Noah Stewart and Elliott James Encarnación, soprano Sonya Headlam, and bass Kevin Thompson. The alto soloist will be announced at a later date. St. John {…}