Творчае развіццё манадыйнай знаменнай традыцыі ў Супрасльскім ноталінейным ірмалоі 1598-1601 гадоў
The article is concentrated on the problem of monadic echoes chant tradition in the Belarusian note linear irmaloys of the ХVІІ century. The specific characteristics of the echoes chant are demonstrated on the material of the note linear edition of fifteen antiphon cycle of the service «Saint Passions». It is concluded that the list of Supraslsky irmaloy of 1598-1601 vividly reveals the preservation and artistic development of the ancient Russian echoes chanters of the Dabraveschensky monastery on the high-est stage.