Is Polyphony hidden into Byzantine Monophony ?

[μάρκελλος]

Achilleas CHALDAEAKES, "Is Polyphony hidden into Byzantine Monophony ?", The Eight International Symposium on Traditional Polyphony, 26-30 Sept. 2016, Tbilissi, Georgia (in Georgian and English)
https://www.academia.edu/37942833/_Is_Polyphony_hidden_into_Byzantine_Monophony_