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