Some of the festivals that he has taken part in include Salzburg Festival , Rheingau Musik Festival , and Les Sons Intensifs ( Lessines ) .
Boriso - Glebsky has performed regularly in Russia and abroad .
Some of the festivals that Boriso - Glebsky has taken part in include Salzburg Festival , Rheingau Musik Festival , and Les Sons Intensifs ( Lessines ) .
Boriso - Glebsky has performed regularly in Russia and abroad .