BACH YEN, A FAMOUS VIETNAMESE SINGER, practises the deep voice with harmonics , 19 NOVEMBER 2020

BACH YEN, A FAMOUS VIETNAMESE SINGER, practises the deep voice with harmonics , 19 NOVEMBER 2020

5 views•Nov 20, 202010ShareSaveQuangHai Tran 6.55K subscribers BACH YEN, A FAMOUS VIETNAMESE SINGER, practises the deep voice with harmonics (1 fundamental, 1 subfundamenal, 1 harmonic melody).19 NOVEMBER 2020. This is the experimental research of overtone singing.