The practice of always singing loudly is greatly to be deprecated, leading as it does to undue strain, to coarseness of the voice, and to utter inability to modulate it into softness and purity of tone. Anyone can shout and bawl, but not every one can sing softly—therefore always practise softly until the voice be well formed, when it will be easy to increase the volume of sound. Constant shouting causes the muscles of the larynx to lose their contractile power, and a condition is brought about which is analogous to writer's cramp. Sometimes no voice can be produced, while at others it is given forth in a series of uncontrollable jerks. Singers deficient in resonance, and who have not acquired the best use and control of the various parts of the resonator, resort to the objectionable practice of forcing their voices, relying upon power of blast and vigour of shout instead of cultivating resonance. A loud, big voice, produced with effort, is a manifestation of a certain amount of physical power; but such voice-production is not singing, it is mere shouting. Tones so produced will ultimately show their bad origin by the effect left behind on the misused muscles.
CULTIVATION OF THE RESONATORS.
The resonators of the human voice, about which years ago Emil Behnke lectured and wrote, are only just beginning to receive the attention which their important functions deserve. Over some of the resonating cavities we can obtain no voluntary control; but over the whole of the mouth, of the buccal cavity, and over part of the pharyngeal we may, by education, gain as much influence as over the fingers of the hand, and the results obtained by such training are frequently astonishing. A student at one of our colleges came to me recently whose first question was "Can you teach me how not to sing with a 'squeezed' throat?" "Nothing easier," was my reply. On his singing a few notes to me, the tone of the voice revealed that owing to want of knowledge of the action of the resonators, he was closing his throat in such a manner that the voice sounded as if he were singing through the teeth of a comb. Without looking in his mouth, I drew on a piece of paper the position in which were his soft palate, the pillars of the fauces, the uvula, and the tongue, telling him that was the picture he would see on looking at his throat while singing. This proved on examination to be the case; and great was his wonderment to find that, after a little practice he could voluntarily remedy this squeezed position until it gradually disappeared altogether, and with it the unpleasant quality of voice which had caused him so much trouble.
The inherent quality of tone is reinforced by the co-vibrations of the air in the resonance cavities, the greater fulness of the sound being caused by the increased quantity of air which is set into vibration. The slightest alteration in the shape of these cavities affects the quality of vocal tone by altering the direction and size of the air columns.
There is for every tone an air column of a certain size which most powerfully reinforces that tone; and every resonance cavity answers to some particular note better than to others. Timbre in the voice depends largely upon the echoing and re-echoing of these resonance chambers; and it needs but little reflection to see that the shape given to the mouth in pronouncing speech sounds—more especially vowel sounds, with all their various shades—interferes more or less with the purity and quality of tone. Hence the necessity in singing for modifying vowel pronunciation to suit the various tones and pitches of the voice. Every shade of vowel has a certain pitch of its own which is best produced by certain positions of the mouth, tongue, and soft palate. It is, therefore, necessary, carefully to shape the mouth so that, on notes of different pitches, the configuration of the mould may be that which gives the best quality of the particular vowel tone. There must be an unimpeded passage for the voice from the larnyx to the lips, and this cannot be obtained if the same vowel shades are maintained in song as in speech. The vowels which require the greatest alteration in position of the mouth are A, E, and U; E being quite the most difficult, because, contrary to the opinion of some teachers who consider it the best for forward production of tone, it keeps the sound farther back in the throat than any other vowel, shutting it up and making the sound thin and poor. Diligent practice before a mirror is necessary in order to acquire the best position of the buccal resonance chamber; its attainment will well repay the trouble taken, for not only will the voice gain in timbre, in resonance, and in ease, but pronunciation will become pure and clear.
The vowel "ah" is frequently chosen as the best one for vocalising, because in its pronunciation it is easy to put the mouth in a good position; and voices are trained on it exclusively, with the result that no other vowel, or vowel shade, is perfectly produced. Actual false intonation often arises from want of practice in adjusting the cavity of the mouth to that shape required for producing the best tone and resonance on the different notes; the absence of co-ordination between the fundamental tone and the overtones preventing perfect tune.
The absolute truth of the foregoing remarks may easily be proved by singing the vowels at either extreme of the "vowel scale of nature," viz., "oo and ee," over the whole compass of the voice, having regard to the beauty of tone. Although the singer may be quite unaware of the science underlying the fact, it will be found that the quality of the voice at the bottom of its range as these vowels are sung is very different from that at the top of the range, the alterations taking place in almost imperceptible gradations. By reference to the foregoing pages of this book it will be seen that the late Emil Behnke attached great importance to vowel training, and exemplifications of his methods are to be found in "Voice Training Exercises" and "Voice Training Studies" written in conjunction with C. W. Pearce, Mus.Doc. The subject is also fully explained in "Voice, Song, and Speech," by Lennox Browne, F.R.C.S., and Emil Behnke; and the whole matter is most ably discussed in "Pronunciation for Singers," by the late Dr. A. J. Ellis, F.R.S., published by Messrs Curwen & Sons.
In thus strongly advocating education of the resonator in the production of vowel sounds in singing, let me not be supposed to ignore the necessity for also cultivating pronunciation of consonants, which have been termed the checks and stops of sound.
Clearness of enunciation and purity of pronunciation, which are great aids to the voice, and possess a charm all their own, depend upon both vowels and consonants being accurately rendered.
The English are the worst enunciators of all European peoples, and their custom is to lay the blame on the language, than which none other is deemed by them so unvocal. There is, however, a vast amount of sonority and musical charm in our grand and noble language, second only to the Italian, when properly spoken.