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