Listen to Act II - "O Isis und Osiris" online. Act II - "O Isis und Osiris" is an English language song and is sung by Staatskapelle Berlin, Chor der deutschen Staatsoper Berlin and Otmar Suitner. Act II - "O Isis und Osiris", from the album Mozart (Best of), was released in the year 2012. The duration of the song is 2:35. Download English songs online from JioSaavn.