The purpose of this represented scientific article is to reveal the specificity of piano thinking of L. Dychko as exemplified in the «Chateau of the Loire Valley» piano fresco. Methods. The methodological background of the study includes the integration of general scientific (historical, system-related, dialectic, culturological, comparative) and special artistic, in particular, music study methods and approaches of the scientific study. The application of the series of special methods of the music study research, characteristic to the historical, theoretical and performance musicology promoted the solution of the problems brought up in the article. Scintific novelty. The scintific novelty of the undertaken study is the revealing of the conceptual bases and intonational-stylistic specificity of the «Chаteau of the Loire Valley» piano fresco as the representation of the universality of L. Dychko’s creative thinking. Conclusion. The article reveals the form-forming and textural principles of the music mirroring of the masterpieces of French architecture in the text of the «Chаteau of the Loire Valley» piano cycle. The performed analysis enabled the distinguishing of L. Dychko’s piano piece as a model of the interspecific artistic communication and a manifestation of the artistic dialogue within «music - architecture» system, which is revealed on the graphically-associational, intonational and semantic, structural, texture and stylistic levels. The article proves that the «Chаteau of the Loire Valley» fresco of Lesia Dychko is distinguished by the immensity of the artist's intention, concert performance and stylistic direction and the high level of the pianistic technique, which is evidenced by the diversity of the piano texture, wide register coverage of the fingerboard, the predominance of the elements of octaval-chordal technique, the diversity of masterly performed passages and figured approaches, which are indued with formal and meaningful properties and acquire the value of the stylistic and graphically-semantic factors. There has been proved in the work the composer’s appeal to the music thesaurus of contemporary pianism, the established in the piano practice texture and expressive means and general types of movements, as well as the individualized performance approaches, endued in the context of the cycle with different functionally-semantic loads (coloristic background, representation of the sonic flow dynamics, graphical and emotional tension, disconcentrated figurative thematic invention, concert-virtuous style).