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