"The manifestation of nervous energy in this manner is quite different from the manifestation of muscular energy, although both are, of course, intimately connected. Muscular energy begins at its maximum and gradually diminishes to the point of exhaustion, whereas nervous energy rises in an inconceivably short space of time to its climax, and then drops immediately to nothing. Nervous energy may be said to be represented by an increased rapidity of emission. It is what the athlete would call a 'spurt.'
"What I have said about the voice applies equally to all other instruments, the piano and the organ alone excepted. It is obvious that the playing of the wind instruments must be subjected to the limitations of the breath, and in the case of the violin and the other stringed instruments, where the bow supplies the motive power, it is impossible for two notes played in succession to sound absolutely alike. If the first note of a phrase is attacked with the weight of the whole bow behind it, the second note will follow with just so much less weight, and if the violinist desires to intensify any of the succeeding tones, he must do so by the employment of the nervous energy I have mentioned, when a difference in the quality of tone is bound to result. The pianist should closely observe and endeavor to imitate these characteristics, which so vividly convey the idea of organic life in all its infinite variety, and which are inherent in every medium for artistic expression.
Phrasing and Breathing
"It would take a book, and by no means a small one, to go into this matter of phrasing which I am now discussing. Even in such a book there would doubtless be many points which would be open to assaults for sticklers in psychological technology. I am not issuing a propaganda or writing a thesis for the purpose of having something to defend, but merely giving a few offhand facts that have benefited me in my work. However, it is my conviction that it is the duty of the pianist to try to understand the analogy to the physical limitations which surround the more natural mediums of musical expression—the voice and the violin—and to apply the result of his observations to his piano playing.
The Natural Effect of Emotions
"There is another relation between phrasing and breathing which the student may investigate to advantage. The emotions have a direct and immediate effect upon the breath, and as the brain informs the nervous system of new emotional impressions the visible evidences may be first observed in the breathing. It is quite unnecessary to go into the physiology or psychology of this, but a little reflection will immediately indicate what I mean.
"It is impossible to witness a disastrous accident without showing mental agitation and excitement in hurried breathing. Joy, anger, fear, love, tranquillity and grief—all are characterized by different modes of breathing, and a trained actor must study this with great closeness.
"The artist at the piano may be said to breathe his phrases. A phrase that is purely contemplative in character is breathed in a tranquil fashion without any suggestion of nervous agitation. If we go through the scale of expression, starting with contemplative tranquillity, to the climax of dramatic intensity, the breath will be emitted progressively quicker and quicker. Every musical phrase has some kind of expressive message to deliver. If a perfectly tranquil phrase is given out in a succession of short breaths, indicating, as they would, agitation, it would be a contradiction, just as it would be perfectly inhuman to suppose that in expressing dramatic intensity it would be possible to breathe slowly.
"In conclusion, I would urge students to cultivate a very definite mental attitude as to what they really desire to accomplish. Do you wish to make music? If so, think music, and nothing but music, all the time, down to the smallest detail even in technic. Is your ambition to play scales, octaves, double notes and trills? Then by all means concentrate your mind on them to the exclusion of everything else, but do not be surprised if, when, later on, you want to communicate a semblance of life to your mechanical motions, you succeed in obtaining no more than the jerky movements of a clock-work puppet."