The subject of the research of this article is the system of advanced training of teachers in vocal of children's art schools and children's music schools, the evolution of approaches (from "learning management systems (LMS)" to "personal learning environments" (PLEs), including during the training and professional development of teacher's academic vocals. The article explores the approaches and methods of professional development of teachers in vocal in the modern informational music-educational environment. On the basis of a comparative analysis of pedagogical practice, the conditions for the development of "personal learning environments (PLEs)" have been identified. The development of an advanced vocational education program for teachers on academic vocals is justified.