Workshop conducted by Tran Quang Hai, Oreno, Italy, 09.11.08 Workshop conducted by Tran Quang Hai, Oreno, Italy, 09.11.08 QuangHai Tran Published on Nov 11, 2008 This is one of the exercice proposed by Tran Quang Hai for his workshop of overtones in Oreno, Italy, 09 november 2008. Teatroreno Contact: info@delleali.it Web: http://www.delleali.it