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