Daily 8 a.m.-10 p.m., during academic year; Mon.-Fri. 5:30 p.m.-10 p.m., Sat.-Sun. 8 a.m.-10 p.m. in summer and during academic breaks; 8-5, during holidays. Organ demonstrations are held on select weekdays from 12:30 to 1:30; phone for schedule. Tours are offered Sun. at 12:15 and by appointment. Closed Christmas and for private occasions. Phone ahead to confirm schedule.