Pope Pius XII speaks about the Liturgy (1956)
“Where it can be done away with without too much difficulty on the part of the faithful, it should be abrogated.” — Pope Pius XI on “orchestral Masses” (private letter)
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.”
