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