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TRAINING THE SINGING VOICE |
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"The loudness of the sound will vary with the area of the vibrating surface." [Negus, p. 344]
Through their inherent power of contraction (tonus) all these connecting extrinsic muscles are capable of vibrating in sympathy with tlie vocal vibrations originating in the larynx. Furthermore, they tend to transmit vibratory energ}' into outlying structures of the body, to which. they are also attached. The following examples illustrate this principle:
1. The stylo-hyoid muscles connect the larynx with the styloid processes of the cranium, thus transmitting laryngeal vibrations into the temporal bones of the skull.
2. The palato-pharyngeus muscles connect the larynx (thyroid cartilage) with the soft palate, thus transmitting laryngeal vibrations into tke roof of the mouth.
%. The sterno-tkyroid muscles connect the larynx with the breast bone1 (sternum), thus transmitting laryngeal vibrations into the chest wall and ribs.
4. The hyo-glossus and other muscles connecting the larynx with ttie tongue tend to generate sympathetic vibrations in the latter.
5- The spinal vertebrae and shoulder blades likewise receive sympathetic vibrations through direct muscular connections with the larynx.. (&g.j the crico-pharyngeal and omo-hyoid muscles. "The cricoid cartilage is held back with great force against the front of the vertebral column by contraction of the crico-pharyngeus muscle." [Negus, p. 380])
Numerous other extrinsic laryngeal muscular connections may be
traced, pertaining to many dilerent skeletal parts of the body that axe similarly affected by direct conduction and radiation of vibratory energy from the larynx, thus indicating that a considerable portion of the human body funcdons as a complex vibrator of sound during the act of phonation. (See also Chapters V and VII.) [Negus, p. 382 If.]
Other discussions of vocal theory appearing in this chapter include the nature and importance of the vocal vibrato in singing. The summarizing analyses of these discussions are self explanatory and need not be repeated here.
METHODOLOGICAL CONSIDERATIONS
The importance of posture. Problems of posture predominate in the 275 methodological statements reviewed. Special emphasis is laid on the positions and control of the mouth, tongue, palate, throat and larynx. Here again, it is desirable to relate the various parts of the vocal medi- |
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