Abstract: The article considers the synaesthesia of the two symbolic phenomena of Russian Christian culture -  znamenny chant and the art of calligraphy. The purpose of the research is to detect the most evident aspects of multisensority in the terminology and graphology of the both phenomena. The research object is the semantic level of the znamenny terminology, the graphological plan of calligraphy and the semiotics of the space of a handwritten text uniting these arts in religious chants books. The analysis of the semiography of znamenny chant is based on the idea about the interrelation between the perception of the phenomenon of znamenny chant and “znamya” itself as a set of equal mode senses. The research methodology is based on the methods of cognitive musicology, comparative Art Studies (I.V. Matsievsky), musical liturgics, the studies of the multisensor nature of the perception of art, lectures and workshops on the art of calligraphy by P.P. Chobitko, and the hierotopy approach to studying the phenomena of the church culture developed by A.M. Lidov. The scientific novelty of the research consists in the approach to the consideration of the two phenomena of the Church-Slavonic culture from the viewpoint of synesthetic codes of the Christian culture. The author arrives at the conclusion that znamenny singing is reflected in art together with the Church-Slavic calligraphy and the semiotics of the church liturgical space based on a special visual-spatial code of the Christian tradition and spaciousness as a feature of a handwritten text of a religious book.