J.S. Bach said, "All music should have no other end and aim than the glory of God and the soul's refreshment; where this is not remembered there is no real music but only a devilish hub-bub."
He headed his compositions: "J.J." "Jesus Juva" which means "Jesus help me." He ended them "S.D.G." "Soli Dei gratia" which means "To God alone the praise