Listen to Organ: Secret online. Organ: Secret is an English language song and is sung by Mary Berry and James O'Donnell. Organ: Secret, from the album Gregorian Chant: Mass of the Annunciation (A Celebration of High Mass According to the Traditional Roman Rite), was released in the year 1997. The duration of the song is 3:32. Download English songs online from JioSaavn.