Title: Dva unikalʹnykh pami͡atnika iskusstva ėpokhi barokko
Subjects: Criticism and interpretation, Russian Manuscripts, History, Musical Manuscripts, Polot͡skai͡a tetradʹ
People: Simeon Polot︠s︡kiĭ (1629-1680), Vasiliĭ Polikarpovich Titov (1650-1715)