Numbers are the manner in which tones exist, one with another. Emotion is the movement of our soul toward the wonderful world that is being created. Now, men when they make music are accustomed to build beautiful tones, because of the delight they cause. Therefore their music world is based on pleasure; its symmetry is regular and charming, its emotion is sweet and lovely.... But my music is founded on painful tones; and thus its symmetry is wild, and difficult to discover; its emotion is bitter and terrible."
