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