Corpus Christi Watershed was sent this fascinating message vis-à-vis motets of Kevin Allen being sung in a Mass with 500+ altar servers present. If anyone has more information, we would love to hear more details about this event!
Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”