@breedmitch Tuvan is not a person. Tuva is a place and Tuvan throat singing is an ancient tradition.
As to how it is done, you are incorrect. Here is a technical explanation:
“The simplest way of explaining what throat singers do is that they can sing two notes at the same time. In fact, not just two notes—some throat singers can produce as many as four distinct tones simultaneously. The effect is truly weird and chilling.
What throat singers do is to select a fundamental pitch at which certain formants will naturally be strongest, and then manipulate their vocal tracts in such a way as to reinforce individual harmonics even further. By careful movements of the jaw, lips, tongue, and throat, they can vary the frequency of the formants, thus affecting which harmonics receive the greatest “kick.” The net result is that you get a steady low-pitched fundamental, but a shifting series of emphasized harmonics forming a melody.
Your vocal cords (known to linguists as “vocal folds”) are not the only structures in your throat that can vibrate enough to be heard. There’s another pair of tissues slightly higher up in the throat known as the false folds; these, along with various other protrusions of cartilage and tissue, can be manipulated, with practice, to make other pitches in addition to the one produced by the vocal folds. So not only can accomplished throat singers combine a single fundamental with an overtone melody, he can actually create two or three simultaneous fundamentals. I get a sore throat just thinking about it.”
There is also an article in the September 20, 1999 issue of Scientific American.