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