RT @EduardHabsburg: Ever wondered what pre-Gregorian Latin chant sounded like? 🇭🇺 Hungarian Benedictine monk Aron Kelemen OSB sings Da Pacem Domine (as it was sung in San Giovanni Laterano in the 6th century)

🐦🔗: https://nitter.eu/WWierzejski/status/1582982748670611456