Through the lowering of the pillars of the fauces, which is the same as raising the soft palate, the outflowing breath is divided into two parts.

I have sketched the following representation of it:—

Division of the breath.

By raising the pillars of the fauces, which closes off the throat from the cavities of the head, the chest voice is produced; that is, the lowest range of all kinds of voices. This occurs when the main stream of breath, spreading over against the high-arched palate, completely utilizes all its resonating surfaces. This is the palatal resonance, in which there is the most power (Plate A).

Plate A

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When the soft palate is raised high behind the nose, the pillars of the fauces are lowered, and this frees the way for the main stream of breath to the head cavities. This now is poured out, filling the nose, forehead, and head cavities. This makes the head tone. Called head tone in women, falsetto in men, it is the highest range of all classes of voices, the resonance of the head cavities (Plate C).

Plate C

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Between these two extreme functions of the palate and breath, one stream of breath gives some of its force to the other; and when equally divided they form the medium range of all classes of voices (Plate B).

Plate B

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The singer must always have in his mind's eye a picture of this divided stream of breath.

As I have already said, in the lowest tones of all voices the main stream of breath is projected against the palate; the pillars of the fauces, being stretched to their fullest extent, and drawn back to the wall of the throat, allow almost no breath to reach the head cavities.

I say almost none, for, as a matter of fact, a branch stream of breath, however small, must be forced back, behind and above the pillars, first into the nose, later into the forehead and the cavities of the head. This forms the overtones (head tones) which must vibrate with all tones, even the lowest. These overtones lead over from the purest chest tones, slowly, with a constantly changing mixture of both kinds of resonance, first to the high tones of bass and baritone, the low tones of tenor, the middle tones of alto and soprano, finally, to the purest head tones, the highest tones of the tenor-falsetto or soprano. (See the plates.)

The extremely delicate gradation of the scale of increase of the resonance of the head cavities in ascending passages, and of increase of palatal resonance in descending, depends upon the skill to make the palate act elastically, and to let the breath, under control of the abdominal and chest pressure, flow uninterruptedly in a gentle stream into the resonating chambers. Through the previous preparation of the larynx and tongue, it must reach its resonating surfaces as though passing through a cylinder, and must circulate in the form previously prepared for it, proper for each tone and vowel sound. This form surrounds it gently but firmly. The supply of air remains continuously the same, rather increasing than diminishing, notwithstanding the fact that the quantity which the abdominal pressure has furnished the vocal cords from the supply chamber is a very small one. That it may not hinder further progression, the form must remain elastic and sensitive to the most delicate modification of the vowel sound. If the tone is to have life, it must always be able to conform to any vowel sound. The least displacement of the form or interruption of the breath breaks up the whirling currents and vibrations, and consequently affects the tone, its vibrancy, its strength, and its duration.

In singing a continuous passage upward, the form becomes higher and more pliant; the most pliable place on the palate is drawn upward. (See Plate A.)

When I sing a single tone I can give it much more power, much more palatal or nasal resonance, than I could give in a series of ascending tones. In a musical figure I must attack the lowest note in such a way that I can easily reach the highest. I must, therefore, give it much more head tone than the single tone requires. (Very important.) When advancing farther, I have the feeling on the palate, above and behind the nose, toward the cavities of the head, of a strong but very elastic rubber ball, which I fill like a balloon with my breath streaming up far back of it. And this filling keeps on in even measure. That is, the branch stream of the breath, which flows into the head cavities, must be free to flow very strongly without hindrance. (See Plate B.)

I can increase the size of this ball above, to a pear shape, as soon as I think of singing higher; and, indeed, I heighten the form before I go on from the tone just sung, making it, so to speak, higher in that way, and thus keep the form, that is, the "propagation form," ready for the next higher tone, which I can now reach easily, as long as no interruption in the stream of breath against the mucous membrane can take place. For this reason the breath must never be held back, but must always be emitted in a more and more powerful stream. The higher the tone, the more numerous are the vibrations, the more rapidly the whirling currents circulate, and the more unchangeable must the form be.

Catarrh often dries up the mucous membrane; then the tones are inclined to break off. At such times one must sing with peculiar circumspection, and with an especially powerful stream of breath behind the tone: it is better to take breath frequently. In a descending scale or figure I must, on the contrary, preserve very carefully the form taken for the highest tone. I must not go higher, nor yet, under any circumstances, lower, but must imagine that I remain at the same pitch, and must suggest to myself that I am striking the same tone again. The form may gradually be a little modified at the upper end: that is, the soft palate is lowered very carefully behind the nose: keeping almost always to the form employed for the highest tone, sing the figure to its end, toward the nose, with the help of the vowel oo. (This auxiliary vowel oo means nothing more than that the larynx is slowly lowered in position.)

When this happens, the resonance of the head cavities is diminished, that of the palate increased; for the soft palate sinks, and the pillars of the fauces are raised more and more. Yet the head tone must not be entirely free from palatal resonance. Both remain to the last breath united, mutually supporting each other in ascending and descending passages, and alternately but inaudibly increasing and diminishing.

These things go to make up the form:—

The raising and lowering of the soft palate, and the corresponding lowering and raising of the pillars of the fauces.

The proper position of the tongue: the tip rests on the lower front teeth—mine even as low as the roots of the teeth.

The back of the tongue must stand high and free from the throat, ready for any movement. A furrow must be formed in the tongue, which is least prominent in the lowest tones, and in direct head tones may even completely disappear. As soon as the tone demands the palatal resonance, the furrow must be made prominent and kept so. In my case it can always be seen. This is one of the most important matters, upon which too much emphasis can hardly be laid. As soon as the furrow in the tongue shows itself, the tone must sound right; for then the mass of the tongue is kept away from the throat, and, since its sides are raised, it is kept out of the way of the tone.

tongue

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sensation

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It lies flattest in the lowest tones because the larynx then is in a very low position, and thus is out of its way.

progression of tones

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propagation form

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Furthermore, there is the unconstrained position of the larynx, which must be maintained without pressure of the throat muscles. From it the breath must stream forth evenly and uninterruptedly, to fill the form prepared for it by the tongue and palate and supported by the throat muscles.

This support must not, however, depend in the least upon pressure,—for the vibrating breath must float above,—but upon the greatest elasticity. One must play with the muscles, and be able to contract and relax them at pleasure, having thus perfect mastery over them. For this incessant practice is required, increasing control of the breath through the sense of hearing and the breath pressure.

At first a very strong will power is needed to hold the muscles tense without pressure; that is, to let the tone, as it were, soar through the throat, mouth, or cavities of the head.

The stronger the improper pressure in the production of the tone, the more difficult it is to get rid of. The result is simply, in other words, a strain. The contraction of the muscles must go only so far that they can be slowly relaxed; that is, can return to their normal position easily. Never must the neck be swelled up, or the veins in it stand out. Every convulsive or painful feeling is wrong.