Gregorian chant is at the heart of the liturgy

“Gregorian chant is not primarily a subject of scientific and historical study. Although this research is important and necessary, turning the chant into a memorial to the past would destroy the Church’s living Tradition. By its very nature, Gregorian chant is at the heart of the liturgy, the public prayer of the whole people of God. The Gregorian repertoire is therefore contained in the Church's current liturgical books. These books are the Gradual, containing the Mass chants, and the Antiphonal, containing the entire divine office.”

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