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