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Smooth Classics with Margherita Taylor 10pm - 1am
24 March 2016, 11:23 | Updated: 6 January 2017, 14:45
It's possible, and the resulting is utterly captivating, and one of the most amazing vocal things we've heard.
German singer Anna-Maria Hefele shares the mind-blowing possibilities of overtone singing, where one person sings two notes at the same time. Apparently it's possible when the singer sustains a low note while simultaneously singing a high-pitched scale (but we're calling witchcraft on this one).
The result is enthralling and haunting. We'll let Anna-Maria explain more...
and here's a great visual representation of what's happening harmonically...