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