St. Joseph’s Co-Cathedral, Prospect Heights, reverberated with the sounds of the 18th century when Mozart’s Requiem was performed as part of a 9/11 remembrance liturgy. Bishop Nicholas DiMarzio was the main celebrant of the annual liturgy for the 23 members of FDNY Battalion 57 who died on Sept. 11, 2001 in the terrorists’ attacks on the World Trade Center.

