P. Vladigerov
Tsar Kaloyan, Act I, Scena I and II
Sofia National Opera Orchestra, Boris Bogdanov, Sabin Markov, Aleksandar Vladigerov, Reni Penkova, Maria Ventsislavova
Tsar Kaloyan, Act I, Scena II
Sofia National Opera Orchestra, Reni Penkova, Sabin Markov, Maria Ventsislavova, Aleksandar Vladigerov
Tsar Kaloyan, Act II, Scena I
Sabin Markov, Maria Ventsislavova, Aleksandar Vladigerov, Sofia National Opera Orchestra, Reni Penkova
