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