Prof. XIAO MEI practised the overtone singing
Tran Quang Hai showed how to write the word MINIMUM with overtones
Prof. XIAO MEI practised the overtone singing
Tran Quang Hai showed how to write the word MINIMUM with overtones
Photo from the video film Le Chant des Harmoniques, directed by Hugo Zemp, with Tran Quang Hai , 1989