polyphonic overtone singing - explained visually by Anna-Maria Hefele
27:22
OVERTONE SINGING & LAMBDOMA by Anna-Maria Hefele (full solo performance)
20:18
Two notes, one voice | Anna-Maria Hefele | TEDxGenova | Anna-Maria Hefele | TEDxGenova
17:09
a short history overview about overtone- and throat singing with Anna-Maria Hefele
3:21
"BY THIS RIVER" | Anna-Maria Hefele & Florian Zack | Pixners BACKstage 2015
3:03:03
SHAMANIC DRUMS + DEEP TRANCE HUMMING MEDITATION ❯ Shamanic Meditation Music for Stress Relief
3:31
Andesana | Anna-Maria Hefele | polyphonic overtone singing
18:42
OVERTONE SINGING - Harmonic Dimensions of the Human Voice by Mark van Tongeren - Interview
24:32