Mefistofele : Act II Scene 2: Walpurgis Night: Ecco Il Mondo, Vuoto e Tondo (Mefistofele, Chorus)
Boito: Mefistofele Stefka Evstatieva, Kaludi Kaludov, Sofia National Opera Chorus, Ivan Marinov, Sofia National Opera Orchestra, Nicola Ghiuselev, Rumiana Bareva, Mincho Popov January 1, 2005