Yale Marquand Chapel Walden Moore Taylor & Boody Organ

Thursday, April 28, 7:30 p.m. (pre-concert talk 6:45 p.m.), Church of the Heavenly Rest, 1085 Fifth Avenue, New York City

St. Mark the Evangelist Catholic Church

55 stops, 46 pipe ranks + 2 electronic, 2,579 pipes

The Klais organ was installed in 1977.