All good things, including any beauty that we encounter, are from God, through God, and ultimately to God. All beauty is God’s beauty, wherever it is found.
Our world was designed to be a place of beauty and goodness, but was marred by sin, and continues to struggle with evil. But one day God will make things fully right again; and in the meantime, beauty and goodness are not totally lost- they still shine through, and point us toward the way things ought to be.
Whatever abilities I have, for creating beauty, are gifts from God. So I will make the most beautiful music I can, not because music-making is my ultimate end, but because I want to press my gifts to their maximum potential toward the true ultimate end: glorifying God. This is equally true of my “secular” music and “sacred” music, of my concert music and church music.
Jesus Christ is Lord, to the glory of God the Father. “He must increase, and I must decrease.”