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