Tran Quang Hai sings “The Hymn of Joy” with overtones Tran Quang Hai sings “The Hymn of Joy” with overtones QuangHai Tran Published on Nov 14, 2007 Tran Quang Hai sings “The Hymn of Joy” excerpted from the 9th Symphony by Beethoven in one breath with the technique of overtone singing
