Since 1966, Tran Quang Hai has given over 3,000 concerts in 70 countries, and has taken part in a hundred or so international traditional music festivals. He has taken part in radio and television broadcasts in Europe, America, Asia, Africa, and Australia.Professor Hai has perfected and made us understand more the Jew’s Harp, the Song of Harmonics, he is the greatest specialist in overtone singing.
Dr. Nguyen Vi Son
Former Assistant Professor at Texas Tech University
Former Assistant Professor at The University of Texas Health Science Center at Houston Careers
Foreword in the book : Tran Quang Hai : 50 Years of Vietnamese Traditional Music and Overtone Singing, 2018, California, USA
TRAN QUANG HAI's world throat singing 