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