P. Vladigerov
Tsar Kaloyan, Act II, Scena I
Nikola Nikolov· Sabin Markov· Aleksandar Vladigerov· Sofia National Opera Orchestra· Maria Ventsislavova· Boyan Katsarski· Zhivko Pranchev· Sofia National Opera Chorus· Lyuben Mihailov· Milen Paounov· Reni Penkova· Evgenia Babacheva· Boris Bogdanov
Tsar Kaloyan, Act II, Scena II
Maria Ventsislavova· Sofia National Opera Orchestra· Aleksandar Vladigerov· Nikola Nikolov· Luben Mihailov