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