Music and Time Annotation << Back On Possible Sources of the Early Russian Polyphony K.V. Posternak The author puts forward a hypothesis according to which the origination of the first samples of the Early Russian polyphony related to the activity of the Greek singers arrived to the Moscow Rus from Italy at the end of 15th century in tow of Zoe (Sophia) Palaiologina or with one of further embassies. Keywords: Byzantine polyphony, Early Russian polyphony Contacts: E-mail: kir-posternak@yandex.ru Pp. 15-20.