Concertmasters’ mastership and musical disciplines section is firmed by qualified leaders owning theoretical knowledge and practical skills in the field of accompaniment art. Specific of Concertmasters’ activity consist in combination of various musical performing actions. Nowadays concertmasters needs to be able to accompany both the soloist of the ballet and choreographic ensemble, to own the extensive repertoire, to know all terminology of ballet art. This work includes the following principles: work on piano maintenance, studying of the classical and national – choreographic repertoire, work with the soloist, work with ensemble, work on instumental accompaniment, reading the musical text at sight and skills of transposing. Concertmasters’ mastership as a type of creative activity plays a fundamental role in work of the concertmaster.