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