Informații de la organizația de arte (verificată de Operabase)
Perm Music College. Concert Of The Musicaeterna Choir by Bortnyansky, Chesnokov, P., Rachmaninoff, Berezovsky, Maxim, Mie 23 Mart. 2016, De la (2016/2016), Dirijor Valeria Safonova, Perm Tchaikovsky Opera and Ballet Theatre, Perm, Russia