There is an ancient saying
(sometimes attributed to St Augustine),
“He who sings prays twice over”.
The document Musicam Sacram, given in the wake of the Second Vatican Council, expresses the importance of music in the liturgy:
Thanks to music, “prayer is expressed in a more attractive way, the mystery of the liturgy… is more openly shown, the unity of hearts is more profoundly achieved by the union of voices, minds are more easily raised to heavenly things by the beauty of the sacred rites, and the whole celebration more clearly prefigures that heavenly liturgy which is enacted in the holy city of Jerusalem” (MS 5).
These weighty words remind us that music both voices the faith and prayer of the Church and deepens their hold on us. It makes a unique contribution to the effectiveness of the Church’s worship and to her mission to evangelise.