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falsetto(fôlsĕt`tō) [Ital.,=diminutive of false], high-pitched, unnatural tones above the normal register of the male voicevoice,
sound produced by living beings. The source of the sound in human speaking and singing is the vibration of the vocal cords, which are inside the larynx, and the production of the sounds is called phonation.
..... Click the link for more information. , produced, according to some theories, by the vibration of only the edges of the larynx. Some male altos are tenors skilled in the use of falsetto. Falsetto tone is usually thin and expressionless, but can be used with good effect.
a register of the singing voice (usually the male voice), in which the head register is used exclusively (without the chest register). In falsetto, the edges of the vocal chords become thinner and form an opening, which causes the voice to sound weak and soft, with fewer overtones. Until the beginning of the 19th century, falsetto was used by tenors to sing high notes. In contemporary operatic and concert singing, the dramatically expressive top notes are produced by mixing the chest and head registers. Falsetto notes are used only to produce special tonal coloring.