From September 14 to September 17, the II International Methodical Choir Assembly «ChoirEXPO 2017» was held at the Sokolniki Exhibition and Convention Center. This year, a new format was introduced to improve the skills of conductors, leaders of choirs, teachers-musicians - the Workshop of choir masters. On the final day of the assembly, within the framework of such a workshop, Olga Burova held a master class on the theme “Contemporary female choir: concept of sound and stage freedom”. And in the evening at the gala-concert of the assembly, the chamber choir “Ozarenie” of the Moscow Musical Society pleased the audience with the performance of musical compositions from its repertoire.