Skill in using the voice involves something more than has thus far been considered under the head of tone-production. Skill in singing is synonymous with finished vocal technique, and the basis of technique is the correctly produced single tone. It is seen that a single tone can be sung correctly when, first, the singer knows the sound of the perfect musical tone, and second, the vocal organs are not hampered by muscular stiffness. When these conditions are fulfilled nothing but practice is needed for the acquirement of technical skill.

Coloratura singing presents the highest development of vocal technique. Dazzling as the effects of coloratura are, they are obtained by the combination of a few simple elements. Perfect command of the single tone throughout the entire compass of the voice, with accurately graded crescendo and diminuendo, the clear, rapid, and accurate transition from one note to another in the varying degrees of staccato and legato,—these elements include the whole physical material of vocal technique.

Training the voice is one concrete process. Its component features may be considered separately; the cultivation of the sense of hearing, the acquirement of command of the single tone, and the development of technical skill,—each may be considered apart from its companion processes. But in actual practice the three elements of Voice Culture cannot be dissociated. The student of singing progresses simultaneously along all three lines. Intelligently directed practice in singing results in this simultaneous progress. As the voice depends for guidance on the ear, so the ear benefits by the improvement of the voice. Each advance made by the voice toward the perfect production of tone is marked by a greater facility in the technical use of the voice. Correct tone-production cannot be directly acquired by the singing of single tones. This practice would tend to stiffen the throat. Technique and tone-production must be developed together.

There is a difference between the natural and the properly trained voice. As to the nature of this difference the facts of empirical observation are borne out by the results of scientific analysis. The natural voice is crude because it is unskilfully used. A lack of facility is revealed in the untrained singer's handling of the voice. Intonations are imperfect; transitions from note to note are rough; the whole effect indicates that the voice is not completely under the command of the singer. Further, the sound of the individual tones betrays faults of production. The tones are more or less throaty or nasal, or indicative of some degree of muscular tension.

A perfectly used voice, on the other hand, convinces the hearer that the singer has full command of all the resources of the vocal organs. Each tone is a perfect musical sound, free from fault or blemish. The voice moves from one note to another with ease and with purity of intonation. All the gradations of loud and soft, all the lights and shades of sentiment or passion, seem to respond directly to the singer's instinctive desire for musical expression. On the physical side the singer's voice is felt by the hearer to be in a condition of balanced and harmonious muscular activity.

When the possessor of a good natural voice goes through a proper course of vocal training, the faults of production native to the untrained voice are gradually corrected. Wrong muscular tension is imperceptibly relaxed. Little by little the student acquires facility in handling the voice. Coincident with this progress is the advance toward the correct vocal action. The transition from the natural to the perfect use of the voice is gradual and imperceptible. There is no stage of progress at which the operations of the voice radically change in character. At no time does the student change the manner of managing the voice. Effects difficult at first gradually become easier, simply as the result of practice. This is the only change that the voice undergoes in training.

One influence, and only one, can interfere with this normal development of the voice. This is the involuntary and unconscious stiffening of the throat. In the normal practice of singing nothing is involved which could cause the throat to stiffen. True, the first stages of study are usually marked by a slight degree of stiffness, due solely to the lack of practice and experience. This initial stiffness does not tend to become habitual; it disappears before the student becomes aware of it, and leaves no permanent trace on the voice. That is, provided mechanical instruction does not intervene, to introduce the tendency directly to stiffen the throat.

As the initial stiffness disappears, and the vocal action gradually becomes smooth and automatic, the voice begins to take on the characteristics of perfect tone-production. The voice rounds out, the tones become free and true, and in perfect tune. No excessive throat tension being present, the voice conforms to the correct empirical standard of tone-production. It gives evidence to the ear of correct support and of open throat. The tones issue freely from the mouth and convey no impression of throat or nose.

As a matter of experience it is known that vocal students generally make satisfactory progress in the first few months of study. This is perfectly natural. It requires several months for the normally constituted student to grasp the idea of mechanical vocal management. Gifted with a fine voice, the natural impulse of any one is to sing. By singing naturally the voice is bound to improve.

Just so soon as the student begins to understand the meaning of attempted mechanical guidance of the voice, the evil effects of throat stiffness begin to be manifest. The more earnest and intelligent students are often the worst sufferers from throat stiffness. They more readily grasp the mechanical doctrines of modern methods and apply the mechanical idea more thoroughly.