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