Brazil | Events 2017 Saúde vocal aos professores de música e cantores líricos e instrumentistas de sopro 2017-04-24 Brazil, Events 2017
Events 2017 | Russian Federation Meeting of vocal teachers “Voice hygiene. Health saving methodics” 2017-04-27
Events 2017 | Russian Federation I Russian Research-to-practice conference “Professional vocal training for boys” 2017-03-21
