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