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