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) desires 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 above all silently, listens to music which he cannot, or cannot fully, appreciate, in the belief that it somehow glorifies God, and that if it does not edify him this must be his own defect. Neither such a High Brow nor such a Low Brow can be far out of the way. To both, Church Music will have been a means of grace; not the music they have liked, but the music they have disliked. They have both offered, sacrificed, their taste in the fullest sense. But where the pride of skill or the virus of emulation and looks with contempt on the unappreciative congregation, or where the unmusical, complacently entrenched in their own ignorance and conservatism, look with the restless and resentful hostility of an inferiority complex on all who would try to improve their taste—there, we may be sure, all that both offer is unblessed and the spirit that moves them is not the Holy Ghost.
These highly general reflections will not, I fear, be of much practical use to any priest or organist in devising a working compromise for a particular church. The most they can hope to do is to suggest that the problem is never a merely musical one. Where both the choir and the congregation are spiritually on the right road no insurmountable difficulties will occur. Discrepancies of taste and capacity will, indeed, provide matter for mutual charity and humility.
—C. S. Lewis, “On Church Music” in Christian Reflections, 96-97