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