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| | Categories of Voice |
 | | This is an area of the voice which is situated between one register and another, when the voice breaks or drops a note consistently in the same area, it is usually considered to be a transition point or Passaggio between one register and another, i.e., from a heavy voice to a light voice. |
 | | Creaky voice (also called laryngealisation or vocal fry, especially in the US), is a special kind of phonation in which the arytenoid cartilages in the larynx are drawn together; as a result, the vocal folds are compressed rather tightly, becoming relatively slack and compact, and forming a large, irregularly vibrating mass. |
 | | The falsetto register is used by male countertenors to approximate the register in classical voice that previously employed castrati, in pieces written before castratism became socially unacceptable and eventually universally outlawed. |
| www.aeroventure.com /My_Song_Bios/human-voice.htm (2568 words) |
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