Polyphonic Overtone Singing – Greensleeves – Canto Difonico armonico avanzato – Giovanni Bortoluzzi Polyphonic Overtone Singing – Greensleeves – Canto Difonico armonico avanzato – Giovanni Bortoluzzi Giovanni Bortoluzzi Ajoutée le 6 nov. 2018 Greensleeves in Canto Difonico politonale/polyphonic overtone singing. For Skype lessons , send me an email: sherden.oc@gmail.com , You can also follow me on FB: https://www.facebook.com/SherdenOSSch… https://www.facebook.com/Giovanni.Bor… Instagram: https://www.instagram.com/giovanni_bo…