Listen to Norma, Act I: "Casta diva" online. Norma, Act I: "Casta diva" is an Italian language song and is sung by Rome Lyric Opera Orchestra, Rome Lyric Opera Chorus, Alberico Vitalini and Maria Luisa Barducci. Norma, Act I: "Casta diva", from the album Classical Music Capitals of the World: Venice, was released in the year 2018. The duration of the song is 6:37. Download Italian songs online from JioSaavn.