Overtone singing

Reinforced harmonics & Chant
“Reinforced harmonics and chant function together as techniques which involve a single tone produced by the vibrator (larynx) with one or more reinforced overtones emanating from cavities in the vocal tract. The techniques are based on the formant theory which holds that vocal tract cavities have natural frequencies reinforcing certain harmonics of the fundamental tone.” (Leonard, 53)

In Tuvan throat singing, there exist three primary styles of overtone singing:

khoomei

kargyraa (deep, like chant )

sygyt (whistle, higher form of khoomei)