The purpose of this article is to identify cultural, musical and pedagogical aspects of the life and work of one of the leading representatives of the Moscow piano school in performance and pedagogy S. Feinberg. The formation of S. Feinberg's compositional and performing style was influenced by many composers of the Silver Age, the leading of whom were A. Scriabin and N. Medtner. The subject of the study is the circle of interests of S. Feinberg. S. Fenberg was one of the best performers of J.S. Bach, L. Beethoven, R. Schumann, P. Tchaikovsky, S. Rachmaninov, N. Medtner, A. Scriabin. S. Feinberg's interpretations of A. Scriabin's works were considered the closest to the author's. S. Feinberg's performance was distinguished by its rigor, precise adherence to the author's text, intellectual interpretation. S. Feinberg summarized his views in musicological works: "Beethoven's 32 Sonatas", "Pianism as Art", "The Fate of Musical Form" and others. The object of the study is the consideration of the individual composer style of S. Feiberg. From the first opuses of S. Feinberg's work, he was interested in the genre of piano sonata. Through the synthesis of research methods, some features of sonatas No. 1, No. 2, No. 6 and No. 12 are presented. The author examines in detail compositional techniques, in particular the attraction to poetry and monothematism inherent in romantic composers, the widespread use of polyphony. A significant event for the musicians was the release of the CD "Feinberg plays Feinberg", released by the Moscow Conservatory in 2021, which included recordings of his twelve sonatas. The main conclusion of the conducted research is that S. Feiberg's style is absolutely individual, which is revealed in the nature of thematism, the ways of its development, and the methods of piano presentation. In addition, a fine connoisseur of the piano, S. Feinberg creates new types of virtuoso technique. The novelty of the research lies in the fact that for the first time the study of S. Feinberg's style is based on the memoirs and theoretical studies of S. Feinberg.