conference on Sacred Music
Fr. John Jenkins FSSPX, 🇵🇱
St. Gregory himself was the author of the office of the Holy Innocents.
Leo IV who was the first to call the chant of the Church ”Gregorian Chant”
Papal Legislation on Sacred Music by Robert F. Hayburn.
Te very fact that the New Mass cannot use the old melodies is already proof enough that it is simply not the liturgy of the Church but something foreign.