Tran Quang Hai uses overtones to sing the pentatonic scale in 1 breath 72 s.

Tran Quang Hai uses overtones to sing the pentatonic scale in 1 breath 72 s.
QuangHai Tran
Ajoutée le 7 mai 2010
Tran Quang Hai uses overtones to sing the pentatonic scale in 1 breath 72 seconds