Tonight, November 2nd, at St John Cantius, Chicago, the annual All Souls’ Requiem Mass will be offered by Bishop Joseph N. Perry, Auxiliary Bishop of Chicago in the Extraordinary Form of the Roman Rite (1962). The Requiem Mass in D minor (K.626) by W.A. Mozart will be sung by the St. Cecilia Choir and Orchestra. Mozart’s Ave verum will also be sung, as well as Mendelssohn’s Beati mortui.