PDF Download (2,092 pages) • “Liturgical Notes on the Roman Missal” by Archbishop Schuster
Blessed Alfredo Ildefonso Cardinal Schuster was a Benedictine monk who became the Archbishop of Milan.
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.”