Tuvan overtone singing, also known as polyphonic singing or throat singing, is a vocal technique that creates two different tones through the resonance created by the airflow of sound through the lungs, throat, and mouth.

How it's done

1. Sing and elongate the letter 'e' in your singing voice
2. Transition from the 'ee' sound to an 'ooh' sound, changing your mouth position
3. Pull your tongue back to the back of your throat to create more space and will amplify the overtone
4. Reposition your tongue while singing the 'ee' to 'ooh' to find the sweet spot and you hear the overtone sound
5. Continue changing your mouth positions and the position of your tongue to hit different overtone notes
6. Practice!

Video tutorial

Other helpful videos

Overtone basics by Anna-Maria Hefele