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