Choir of the University of Silesia Harmonia
The University of Silesia the Katowice – Faculty of Arts and Sciences of Education in Cieszyn, Cieszyn, Poland
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Eszterházy Károly Katolikus Egyetem Énekkara / Choir Eszterházy Károly Catholic University Catholic University
Eszterházy Károly Catholic University, Eger, Hungary
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Collegium paedagogicum
Charles University in Prague, Faculty of Education, Prague, Czech republic
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