Sabin Markov, Evgenia Babacheva, Lyuben Mihailov, Zhivko Pranchev, Boyan Katsarski, Milen Paounov, Reni Penkova, Maria Ventsislavova, Boris Bogdanov, Sofia National Opera Chorus, Alexander Vladigerov & Sofia National Opera Orchestra
Цар Калоян: Опера от Панчо Владигеров
20 MINUTI E 41 SECONDI