"For the elements of music, nature provides nothing but a multitude of tones differing in pitch, duration, and intensity by the greater or least degree... The conception of the relationships that exist among them is awakened in the intellect, and, by the action of sensitivity on the one hand, and will on the other, the mind coordinates the tones into different series, each of which corresponds to a particular class of emotions, sentiments, and ideas. Hence these series become various types of tonalities. (p.11f)"