The urgency of the study is due to the need to determine the source base of the study of pedagogical ideas of M. Leontovych in the context of the formation and development of domestic music education. The aim of the article is to comprehend modern approaches to the pedagogical ideas of Mykola Leontovych and to conclude the source base of their research. Achieving the purpose of the article allowed the use of general scientific methods (historical, retrospective, chronological, analysis, synthesis, classification, specification, comparison, generalization) and general methods of historical and pedagogical research (biographical and method of historical actualization). The classification of the source base for the study of pedagogical ideas of M. Leontovych was carried out according to the chronological criterion and the criterion of taking into account aspects of the information contained in the source. Based on these criteria, five groups of sources were identified and characterized: the works of M. Leontovych; archival sources; encyclopedic editions; interpretive publications; memoirs, letters and documentary anniversaries. It is emphasized that the source base of research of pedagogical ideas on M. Leontovych is diverse and significant in volume. application of forms, methods and techniques of teaching in lessons in educational institutions; the influence of the composer's musical heritage on the formation of value orientations of students. Analysis of dissertations and monographs showed lowrepresentativeness of such studies, which indicates the need to substantiate the pedagogical ideas of Leontovych in the context of the development of national music education in historical retrospect, taking into account socio-political, socio-cultural and cultural-anthropological determinants.
 Keywords: history of domestic pedagogy; Mykola Leontovych; source base; pedagogical ideas; personalities; methods of historical and pedagogical research; music education; anniversary.