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