🎶 Hildegard de Bingen — De Spiritu Sancto This sound feels ancient because it truly is. De Spiritu Sancto was composed nearly 900 years ago, long before harmony, chords, or accompaniment existed as we know them today. What you’re hearing is pure monophony — a single melodic line sung in unison. No voice stands out. No one competes. Every singer becomes part of one continuous breath. What makes this music even more extraordinary is who created it. Hildegard de Bingen was a woman living in the 12