74,292 viewsSep 18, 200965013ShareSavemingderchung 428 subscribers With this Dao, Overtone Singing is made easy by Natascha Nikeprelevic. A true disciple of Michael Vetter, Natascha revealed in this documentary excerpt the four secret routes to the world of overtones: U – O – A; U – Yu – I; O – er – I; and A – a – ei – I. Yes, with this method everyone can enjoy his/her rich overtones!