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