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