Listen to Gloria in D Major, RV 589: IX. Domine Deus, Agnus Dei (Pt. 1) online. Gloria in D Major, RV 589: IX. Domine Deus, Agnus Dei (Pt. 1) is an Unknown language song and is sung by Rosa Aldrovandi. Gloria in D Major, RV 589: IX. Domine Deus, Agnus Dei (Pt. 1), from the album Classical Music to Work: Famous Composers to Reduce Stress in Office, Inspirational and Mood Music, was released in the year 2016. The duration of the song is 2:42. Download Unknown songs online from JioSaavn.