> The Georgians invented polyphonic singing.

At best they have the oldest tradition of polyphony in church music.

It's very difficult to trace the history of polyphonic singing as it developed independently along music in different parts of the world.

Beautiful, indeed, thanks for sharing that link. But have you got any references on your claim on the origins of polyphony? My understanding is that it is generally accepted to have developed globally, broadly speaking from homophony to heterophony to polyphony, in many different cultures.

As example I prefer Trio Mandili's Apareka: https://www.youtube.com/watch?v=IbsQJBxICN0 and the "heavy version" https://www.youtube.com/watch?v=iybYK53pzYw :)

Exquisite and thrilling, thanks! But Tuvan throat singers say hold my beer.