Khöömei Overtone Singing workshop with Raphaël De Cock – Venice Khöömei Overtone Singing workshop with Raphaël De Cock – Venice Francesco Gibaldi Ajoutée le 12 déc. 2016 Venice, San Servolo island, 10/22nd – 23rd / Khöömei Overtone Singing workshop with Raphaël De Cock.