At first the author defines the principle research thesises of the dissertation`s problems and the concept of interdisciplinary methodology. He adopts the view, that a literary work can and should be examined not only in its "natural" aesthetical context but also in connection with other provinces of fine arts science. Especially the field of music and music theory seems to be of great help. This is proved by the near relationship between the fine art of word and the fine art of sound within common forms (for instance song or libretto) and common kinds of modern art (play or screen play) as well as the affinity to related fields of science. ; It is also confirmed by a series of dissertations which take advantage of transposition of concepts of categories used in the analysis of a musical or iconical piece of work, for research on the structure of a piece of literary work. The methodological contemplation of this paper possesses the characteristics of a general and systematized proposition allowing a deeper understanding of new literary facts, which cannot be achieved by other methods of research. Considering the complicated character of the instruments of research it should however be applied with the necessary caution to the analysis of those facts, which give reasons for a subjective-competent and objective-instrumental and methodological justification.