National in modern composer's work:to the problem of interpreting the song source

The article deals with the specific facets of the issue “Composer and Folklore” based on the example of piano transcriptions in musical and creative practice of Kazakhstan during different decades. Based on the traditions of musicology in the study of national composition schools, the genre that has acquired a special and ever-increasing representative value in the modern cultural situation is presented. In the works that are in active demand in the field of musical performance, the expediency of relying on the text of the original folk source for the implementation of the adequate and complete interpretation (performing, musicological, etc.), regardless of the measure of its rethinking, is emphasized.Since the most bright patterns of folk and “oral and professional creativity” (T.B.Gafurbekov) are interpreted more than once, the versions of various authors are compared. There are comments of the “series of transformations” of the well-known folk song “Kamajay” using musical illustrations. Its two piano variants show the significance of variation methods using genre-style models that bring new meanings to the content of the whole. “Improvisation” (1978) by A.Bestybayev (born in 1959) in the historical context is a symbolic work in view of its obvious conceptuality. The creative figure of the composer himself demonstrates the spiritual potential that will be even more convincingly marked and revealed later.Perspectives of studying the “National” category in its multiple manifestations in the development of the artistic culture of Kazakhstan are seen not only in view of the determination of the broader theoretical context, but also in view of the consistent introduction of works, documents, facts into the research practice, which were for certain reasons “forgotten” or not fully involved [1]. History and traditional values are able to actualize multi-level issues that are significant for the nation’s self-determination on the “global map of the XXI century” (N.А.Nazarbayev) through cultural achievements.