TRAN QUANG HAI sings overtones in front of cows in UDINE, ITALY TRAN QUANG HAI sings overtones in front of cows in UDINE, ITALY QuangHai Tran Published on Oct 5, 2009 Tran Quang Hai sings overtones in front of cows in Udine, Italy to see if these cows have some reaction . 02 october 2009 . Before the starting of the festival CANTO SPONTANEO organized by Giovanni Floreani Share this:TwitterFacebookLike this:Like Loading... Related Author: tranquanghai1944 Ethnomusicologist, composer and vietnamese traditional musician View all posts by tranquanghai1944