[103] [cap.31] "Now this Jubal," says Moses, "is the father who showed men the use of the psaltery and of the harp." [90] He in the strictest consistency with nature calls distinctly uttered language the father of music and of all the instruments used in music; for nature, having given the organ of voice to animals as the first and most perfect of organs, afterwards gave to this organ all the harmonies, and all the different kinds of melodies, in order that it might be a previously made model for those organs which are hereafter to be made by art.