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