Unnatural effort in breathing, over-effort in breath control, as well as singing without adequate breath, all induce tension that is reflected at once in the sensitive throat.
Impatience of results, American hurry, beget unnatural effort and tension. "Unclasp the fingers of a rigid civilization from off your throat." The student of the violin or the piano soon learns that only by a long and patient preparation can he fit himself to entertain even his admiring friends. The embryo singer, on the contrary, expects with far less expenditure of time and effort to appear in public.
The human voice is a direct expression of the man himself; it registers spontaneously his mental and emotional states, even when he would wish them hidden. Mental conditions tinged with impatience, with fear, or with anything that begets tension of any sort are reflected instantly in the voice, robbing it of its better qualities and inducing stiffness in the throat.
Reduced to its lowest terms voice culture to-day is a struggle with throat stiffness.
The causes indicate the remedy. Foremost, then, is dropping all throat consciousness, all thought of the throat, all drawing of attention to it. The larynx must be left uncramped, unhindered to do its work in free unconsciousness, which it will do if not disturbed by tension in its neighborhood, or by misdirected thought.
The stream of consciousness must in singing be directed to the breathing which is below the throat, and to resonance and pronunciation which are above it. These functions are more or less consciously controlled until at last mastery makes their action automatic.
I would once more emphasize the fact that the free use of all the resonance chambers, and the recognition of the great function of resonance, will do more than anything else to set the voice free and emancipate the singer from all interfering rigidity.