Трансмиссия беларусской певческой практики православной традиции в Московское царство (середина XVII века)

The article presents the activities of the subjects of the Belarusian singing practice of the Orthodox tradition in Muscovy in the middle 17th century. Belarusian Church musicians were forced to emigrate to Moscow Kingdom due to war and religious conflicts. Belarusian Church musicians were masters of the new style for Russian Church singing – partes polyphonic. The article describes the activities of the monks Kutein monastery near Orsha, who moved to the Iveron monastery on Valaam (at the invitation of the Russian patriarch); about the famous Belarusian Church musicians Ivan Koklia, Daniel Rogachevski, Eustafi Manevski, Nicolay Diletski. Analyses of the Belarusian song manuscripts that were used in Russian monasteries and parish churches