Listen to Credo in unum Deum online. Credo in unum Deum is a French language song and is sung by Jean Tubéry, La Fenice and Choeur De Chambre De Namur. Credo in unum Deum, from the album de Sayve: Messe pour le Sacre de l'empereur Matthias, was released in the year 2008. The duration of the song is 7:18. Download French songs online from JioSaavn.