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