“The composer, through experience, learns what elements generate certain moods. Anger can be generated by what I call red tones, which slightly clash in orchestrations, and so, mentally irritate. A tranquil mood can be inspired by quiet, gently flowing melody. Alarm can be created by clashing harmonies; unrest by monotonous beat of tomtoms and by effects strange in musical principle, and hence, played to unaccustomed ears. Sonorous bells and deep tones of the organ inspire reverence. These are all matters of elemental psychology. By deciding to what extent to use them, one gets the shades in between the basic classifications.”