From a reader:
A guest ensemble will sing the 6-voice Missa pro defunctis by Duarte Lobo, a Portuguese composer of High Renaissance polyphony. This exquisite work of sacred art is not often performed, and the opportunity to hear and pray an actual liturgy sung with this music is even more rare. All Soul's Day is a powerful opportunity for the Church on earth to pray efficaciously for the Church suffering in Purgatory, for your own departed loved ones and for all those souls who have no one to pray for them. In your charity, please consider attending Mass to assist the poor souls.