The aim and final end of all music should be none other than the glory of God and the refreshment of the soul. If heed is not paid to this, it is not true music but a diabolical bawling and twanging.” Johann Sebastian Bach
“It is consoling to think that the emotions that music arouses in us have something to do with the makeup of the universe. The eternal relation of math and music has been a perennial question since Plato, from Boethius and Cassiodorus in late antiquity, through Dante’s celestial harmony in Paradiso and Shakespeare’s discussion in The Merchant of Venice.” David P. Goldman, “The Divine Music of Mathematics,” First Things, April 2012, p. 33
“Music employs number both in its harmonic foundation and its metrical presentation in time. But what sort of number is it?” Ibid
“In the sixth book of his De Musica, Augustine asserted the existence of a higher order of number that in some way stands about the senses, the numeri iudiciales or ‘number of judgment’ which ‘come from God’ and enable the mind to judge what it perceives and remembers, as well as what it expects: first, that neither our sense perception nor even our memory explains how we hear music; second, that the faculty by which we judge the number (rhythms or harmonies) of music is also a kind of number; and third, that this higher-order number comes from God.” Ibid., p 33,34.
“There are two musical situations on which I think we can be confident that a blessing rests. One is where a priest or an organist, himself a man of trained and delicate taste, humbly and charitably sacrifices his own (aesthetically right) desire and gives the people humbler and coarser fare than he would wish, in a belief (even, as it may be, the erroneous belief) that he can thus bring them to God. The other is where the stupid and unmusical layman humbly and patiently, and about all silently, listens to music which he cannot, or cannot fully, appreciate, in the belief that it somehow glorifies God, and this if it does not edify him this must be his own defect.” C. S. Lewis, Christian Reflections, p. 96, 97