Music should assist the assembled believers to express and share the gift of faith that is within them and to nourish and strengthen their interior commitment of faith. . . Music can also unveil a dimension of meaning and feeling. . . which words alone cannot yield."
-" Music in Catholic Worship", Bishops' Committee on the Liturgy, 1972
(Also see Chapter VI, "Sacred Music" in the Constitution on the Sacred Liturgy, Sacrosanctum Concilium, from the Second Vatican Council.)