The Vibrato: A Specific Integrational Emergence Upon Fusure of Somatic Rhythms

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Abstract
54 subjects chosen at random from various educational groups and from the upper 50% of intelligence in those groups were studied with the oscillograph. Instructions were given in clear tone and posture. (Elevating chest, humming m.) Prior to instructions 6 had vibrato, 33 had irregular vibrato, 15 had no vibrato. After instruction 46 had regular v., 6 irregular vibrato, 2 questionable. Amplitude vibrato is the result of fixation of back, neck, shoulder girdle, and thoracic cage, with minimal activity of diaphragm and abdominal musculatures. Pitch vibrato occurs as result of fixation of larynx and adjunctive musculatures, allowing minimal activity of phonating system. Complexity vibrato is the result of fixation of the head and jaw, pharynx, naso-pharynx, and fauces, with balanced flexibility of lips, tongue, and soft palate. Artistic vibrato is the result of the delicate balance of the gross structures of posture and respiration against the small muscles of the larynx, pharynx, jaw, palate, tongue and lips.