CHAPTER III
REGISTERS AND LARYNGEAL ACTION
Probably no other topic of Vocal Science has been studied so earnestly as the registers of the voice. Yet on no other topic is there such wide diversity of opinion among theorists and investigators.
Very little is definitely known regarding the manner in which the subject of registers was treated by the old Italian masters. Suffice it to say here that the old masters did not refer the registers to changes in the laryngeal action. They were treated simply as different qualities of tone, each quality best adapted to be sung only in a portion of the voice's compass.
In the early decades of the nineteenth century the registers of the voice received much attention from vocal theorists, especially in Paris. Garcia's first published work, Mémoire sur la Voix humaine, was presented to the Academy of Sciences in 1840. This Mémoire gives the results of observations which Garcia made on his own pupils; it deals mainly with the position of the larynx during the singing of tones in the various registers. Garcia describes how the larynx is raised and lowered in the throat, according to the register in which the tones are produced. He also notes the position of the tongue and the soft palate.
All the results of the laryngoscopic investigation of the vocal action have been disappointing in the extreme. In the first place, no two observers have obtained exactly the same results. Writing in 1886, Sir Morell Mackenzie says: "Direct observation with the laryngoscope is, of course, the best method at our disposal, but that even its testimony is far from unexceptionable is obvious from the marvelous differences as to matters of fact that exist among observers. It is hardly too much to say that no two of them quite agree as to what is seen." (The Hygiene of the Vocal Organs, London, 1886.) Wesley Mills, in his latest work, endeavors to show a substantial agreement among the best equipped observers of the registers, but his attempt can hardly be called convincing. (Voice Production in Singing and Speaking, Philadelphia, 1906.) Opinions on the subject of registers, held by the leading voice specialists to-day, are fully as divergent as in 1886. Widely different statements are made by prominent authorities as to the number of registers, the vocal cord action by which each register is produced, and the number of notes which each one should properly include.
Another deficiency of the doctrine of registers is even more serious in its bearing on practical instruction. Not only have all investigators failed to define exactly what the correct laryngeal action is. Even if this were determined it would still be necessary to find means for imparting command of this correct action to the student of singing. Knowing how the vocal cords should act does not help the singer in the least to govern their action. What the vocal student wishes to know is how to cause the vocal cords to assume the correct position for each register. On this, the most important topic of mechanical Voice Culture, Vocal Science has shed no light whatever. A student may hear descriptions of the laryngeal action, and study the highly interesting laryngoscopic photographs of the vocal cords, until thoroughly familiar with the theoretical side of the subject. Even then, the student is no better able to control the vocal cord action than when profoundly ignorant of the whole matter.
This deficiency of Vocal Science is frankly recognized by one of the latest authoritative writers on the subject, Dr. Wesley Mills. On page 173 of his work just quoted, he advises students to hear the great singers, to note carefully the quality of tone which characterizes each register, and to imitate these qualities with their own voices. This advice may almost be described as revolutionary. Vocal theorists have always assumed that the correct action cannot be acquired by imitation. In this advice to rely on the imitative faculty for acquiring control of the laryngeal action, Dr. Mills abandons the basic principle of modern methods. Without exception, all instruction in singing is to-day based on the idea of mechanical tone-production. An entirely new theory of Voice Culture is involved in this advice of Dr. Mills.
Turning to practical methods of instruction, it is found that the subject of registers is very seldom treated in the manner suggested by the theoretical works on the voice. This would be, to make the "placing" of the voice in the different registers the exclusive subject of instruction for a certain number of lessons;—to train each register of the voice separately;—when the correct vocal cord action had been established in each register, to unite the different registers, and to correct any "breaks" which might have developed. Comparatively few teachers attempt to follow this course. The great majority treat the registers in a much less systematic fashion. A single half-hour lesson usually includes explanations and exercises on several topics of mechanical tone-production, as well as hints on agility, style, execution, etc. As merely one of this variety of subjects, the registers usually receive rather desultory attention.
Most teachers recognize either two registers,—chest and head; or three,—chest, middle, and head. Comparatively few extremists recognize more than three. Several sets of names for the registers have been proposed by vocal theorists,—thick and thin, long reed and short reed, high and low, etc. But these names have not been adopted by teachers to any extent.
In most practical methods the chest register occupies about the same position; this is also true of the head register. Even those teachers who profess to ignore registers recognize these two distinct qualities of tone; they instruct their pupils to sing low notes in one quality, and high notes in the other. This is in fact the general practice. In this connection the topics of registers and resonance are often combined. The terms "head voice," "head register," and "nasal resonance," are used interchangeably by the great majority of teachers. This is also true of the expressions "chest voice," "chest resonance," and "chest register."
In teaching students with high voices, teachers usually "place"[5] the medium notes first, roughly speaking, from G to d (for male voices one octave lower). Then the lower notes are developed, mostly by descending scale passages, the lowest note practised being usually C. The high notes are sometimes "placed" by ascending scale passages and arpeggios, but more often by the octave jump and descending scale. There is room for considerable variation in this class of exercises, but they all conform to the same general principle.
Very little connection can be traced between the scientific doctrine of registers, and the treatment which this subject receives in modern methods. This is only to be expected, in view of the fact that laryngoscopic investigation has not resulted in practical rules for managing the vocal cords. The registers of the voice are handled by modern teachers in a purely empirical fashion.
Movements of the Larynx, Tongue, and Soft Palate
Howard's theories, with the details of a practical method based thereon, are fully described in his most important published work, The Physiology of Artistic Singing, New York, 1886. A complete exposition of Howard's theories is not called for here. For the present purpose the following short summary will suffice:
"In the production of tone, the muscular tissue of the vocal cords is thrown into vibration by the air blast, and not merely the membranous covering of the inner edges of the cords. For a soft tone, only a portion of the fleshy mass of the vocal cords vibrates; if this tone is gradually swelled to fortissimo, a constantly increasing portion of the muscular tissue is called into play. For the loudest tone, the entire mass of the vocal cords is bought into vibration. Thus the increased volume of the tone results not alone from the increase in the power of the breath blast. Each addition to the power of the expiration demands also a change in the adjustment of the vocal cords.
"The contractions of the muscles inside the larynx, including the vocal cords, cannot be brought under direct voluntary control. But these contractions can be regulated by the actions of other sets of muscles, viz., those by which the larynx is connected with the skeletal framework of the head, neck, and chest. These latter muscles can all be controlled by direct volition. Each of these sets of muscles has its function in tone-production. One set pulls the larynx backward, into the position already described, against the backbone. Two other opposed sets hold the larynx firmly in this position, one set pulling upward, the other downward. Finally, and most important in their influence on the actions of the vocal cords, a fourth set of muscles comes into play. These tilt the thyroid cartilage forward or backward, and thus bring about a greater or less tension of the vocal cords, independent of the contractions of the muscles of the vocal cords themselves. In this way is regulated the amount of the fleshy mass of the vocal cords exposed to the expiratory blast. Correct tone-production results when exactly the necessary degree of strength is exerted by each one of these four sets of muscles."
Howard also paid much attention to the breath; he worked out the system of high-chest breathing in a really masterly fashion. But his manner of dealing with this subject did not differ from that of a great number of other teachers.
In this review of modern methods, the Howard system is important, mainly because it represents the consistent application of the idea of mechanical tone-production. As was observed, Howard's theories had very little influence on the general trend of Vocal Science. The external features of the Howard system are indeed shared to some extent by the methods of many other teachers. Muscular drills of about the same type are very widely used. Some teachers go so far in this respect that their methods might almost be confounded with the Howard system. But the resemblance is purely external. Even in 1880, at the time when Howard had fairly perfected his method, there was nothing novel about exercises of this type. The first attempts at a practical study of vocal mechanics consisted of observations of those parts of the vocal organs whose movements can be readily seen and felt. These are the lips, tongue, palate, and larynx. Garcia's Mémoire, already cited, is mainly a record of observations of this kind. Nearly every vocal theorist since that time has also paid some attention to this phase of the vocal action.
In practical methods of instruction, elaborate systems of rules have long been in use for governing the positions of the tongue, lips, palate, etc. Unlike the Howard theory, no definite scientific basis is usually given for specific directions of this kind. Each investigator has simply noted how certain great singers held their tongues or soft palates, whether the larynx was held high or low in the throat, etc., and considered that these must be the correct positions. It would be hard to find a greater diversity of opinion on any topic connected with the voice than is encountered here. To enumerate all the rules which are given for governing the actions of each part would be useless. A few of the contradictory opinions regarding the correct position of the larynx will suffice to show how great is the confusion on this topic:
"The larynx should be held low in the throat for all tones." "It should be held in a fixed position high in the throat." "It should be high for low tones, and should descend as the pitch rises." "It should be in a low position for the lowest note of each register, and should rise as the pitch rises; when the highest note of the register is reached, it should at once descend for the lowest note of the next register." Prominent teachers and writers could be cited as authority for each of these rules, and indeed for several others. A similar diversity of opinion is found regarding the rules given for the position of the tongue and the soft palate.
All the movements of the tongue, lips, and jaw are directly under voluntary control. Exercises for these parts are therefore given only for acquiring suppleness and agility. The muscular movements of the larynx and soft palate are readily brought under control. Each can simply be raised and lowered. A few minutes' daily practice, extended over three or four weeks, is generally sufficient for the student to acquire satisfactory command of these actions. But to hold the tongue, palate, and larynx in any prescribed position, while singing a tone, is an extremely troublesome matter. Those teachers who adhere to precise systems for the positions of these parts, frequently impose much arduous practice on their pupils. As to the merits of any special system of the kind, this question is reserved for future discussion.
It would be hard to determine when the term "attack" was first used to describe the starting of a vocal tone. Nor is it easy to define the precise position assigned to the subject of attack by vocal theorists. No satisfactory statement of the theory of attack can be cited from any published treatise on Vocal Science. It is commonly asserted, rather loosely indeed, that the tone must be "started right." As Clara Kathleen Rogers expresses it, "Attack the tone badly, and nothing can improve it afterwards." (The Philosophy of Singing, New York, 1893.) This statement is in the practical sense utterly unfounded. A tone may be "attacked" with a nasal or throaty quality, and then be improved, by simply eliminating the objectionable quality. Of this fact the reader may readily convince himself. In short, all the accepted theories of attack rest on an unscientific basis.
Three possible ways of attacking a tone are generally recognized. These are described by Albert B. Bach, in The Principles of Singing, second edition, London, 1897. They are, first, the stroke of the glottis. (This is advocated by Garcia in most of his published works, although the testimony of many of his pupils, notably Mme. Marchesi, is that Garcia used the glottic stroke very little in actual instruction.) Second, the aspirate (h as in have), which is generally condemned. Third, the approximation of the vocal cords at the precise instant the breath blast strikes them. This latter mode of attack is advocated by Browne and Behnke, who call it the "slide of the glottis." It must be observed that neither the stroke nor the slide of the glottis can be shown to have any influence in causing the laryngeal muscles to adopt any particular mode of adjustment.
Turning to practical methods of instruction, little connection can be traced between the theories of attack and the occasional directions usually given for starting the tone. The subject of attack is seldom assigned to any particular period in the course of study. Many teachers ignore the matter altogether. Others devote a few minutes now and then to drilling a pupil in the stroke of the glottis, without attaching much importance to the subject. (The position assigned to this mode of attack by the "breath-band" theorists has already been mentioned.) On the whole, the matter of attack is usually treated rather loosely. The pupil is occasionally interrupted in singing a phrase, and told to "attack the tone better." Needless to say, this form of instruction is in no sense scientific.