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