polyphonic overtone singing - Anna-Maria Hefele

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Chase Holfelder : Incredibly impressive.

Google User : The video is in black and white to hide her green skin 👽

szesciopak : SCARY. good for self defense

bora bora : I feel trapped in a 50s science fiction.

Madahi Khan : Uhm... This is creepy... I don't like it... But the comment section is hilarious AF!!!

Alexis Reed : This is like when squidward swallowed a slide whistle oml

Mcl : But can you do Africa by Toto?

overlycreative1 : This will come in really handy if I ever get stuck on a desert island. " Ok, Wilson, you take the harmony".

Jeremy Kiahsobyk : If Dissociative Disorder had a theme song...

Cole Dalton : Human.exe has stopped working!

SkullCrusher : I once sneezed and farted at the same time, I can relate to it.

Oh : *My strange addiction* "I like to swallow recorders whole"

NCF8710 : She is waving her hand. Is there a Theremin nearby?

Korkee Konrad : It's like Tuvan throat singing but without the scraggly facial hair and furry hats.

twenty paphønies : "thanks for watching" *casually disappears*

Kateřina Černá : Well this is what I call multitasking.

Liquid Rainbow : I can do this too when i'm choking on a potato, i swear.

attaboy azza : Comes with sign language for hearing impaired.

Philip : Like a good young person she got plenty of exercise and made sure to take all her theramins.

Sebastian ASMR : This is the sound of the apocalypse

Jimin 4life : The video is funny but the comments are a whole another level of hilariousness in its own self 😂

Tawny Evergreen : Woah, this is super impressive but the black and white really brings out to the eerieness of the sound jesus christ

AKS : I am a classical tenor, and I find this very interesting. I have a high degree of control over my voice, and the manipulations of overtones allow me to sing over an orchestra and to control vowels, and I sometimes play around making sounds like these for fun......but I have never tried doing it to this level of creating two scales. But now I will try it as well....thanks for the wonderful display....brava.

Amy Espinoza : This is so cool. But why is it that the more I listen to it, the creepier and more unnerving it gets?

Bill Ramey : "Thanks for watching, humans."

Sgt. Jayden Eveleigh : “Thanks for watching” *gets summoned by her tractor beam*

Seth McIntosh : She'd be great to take hunting elk.

Niemaa aaand : Weird flex but ok

Chado : One of the most beautiful nerds i've ever seen.

shlups : She looked normal in the thumbnail but now she looks terrifying

Ebba Nyberg : It’s 3am

Sophia Townsend : I feel like Im in How To Talk To Girls At Parties

Taxtro : Odd to hear those sounds coming from a human.

A Dead Chap Named Spooks : I'm pretty sure this is how aliens communicate....

Chris Kelemen : I too am a human who likes walking with my human leg and singing with my human voice.

Budoshoha : This is absolutely amazing....how much possibilities we have with our body, voice, everything...and very rarely develop what is given to us. This is so amazing, awesome, beyond.....

Tryptamine Odyssey : This woman is my cat’s worst nightmare made flesh

Ploopybear : She generates singing power with massive amounts of blinking

Mayorb : My cat just exploded. Thanks.

Raccoon Residence : My dogs are fascinated by this vid. My question is how does this apply to music? I'm thinking heavy metal.

Chado : Wow. Two singers for the price of one, lol.(jk)

wlazare1 : Yeah but can you pat your head while rubbing your stomach ?????

WATCH BTS - IDOL : I've been doing this without knowing what it was the entire time lol. Of course, I'm no where near as good as her, but it sometimes happens.

Jagi Frisbee : I didn't know how to react when she first started singing.

carlos oliveira : I wouldn't call it singing. Sounds like playing the nose harp.

Jane Heimbichner : But the the real question is why? Why would you do this this?

Wayne Fields : This is aw some if I want to sound like a police siren or sing the tracks for a horror suspense movie...

Alexis Mandelias : Subtitles be like: *[singing]*

mrxexes : I accidentally played this with my speakers blasting loud, long story short I now have a freaking portal vortex thingy in my living room... Should I be worried?

Miktecrep : I want to marry her