Youth choir «Polyhymnia» of Peter the Great St. Petersburg Polytechnic University (St. Petersburg, Russia), artistic director –Igor Soloviev

Youth choir «Polyhymnia» of Peter the Great St. Petersburg Polytechnic University (St. Petersburg, Russia), artistic director –Igor Soloviev

Youth choir «Polyhymnia» of Peter the Great St. Petersburg Polytechnic University (St. Petersburg, Russia), artistic director –Igor Soloviev