BISHOP SLATTERY talks about the FSSP Seminary:
You can watch the full video, and when you do, notice the place of Sacred music. The entire video revolves around Sacred music.
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.”