What was Hildegard von Bingen most famous piece?

What was Hildegard von Bingen most famous piece?
Her composition Ordo virtutum (c. 1151), is the oldest surviving music drama not written for church use. Hildegard's most important works include Ordo virtutum, 43 antiphons, 18 responsories, as well as sequences, hymns, and chants.
What race is Hildegard?
Hildegard of Bingen (German: Hildegard von Bingen; Latin: Hildegardis Bingensis; c. 1098 – 17 September 1179), also known as Saint Hildegard and the Sibyl of the Rhine, was a German Benedictine abbess and polymath active as a writer, composer, philosopher, mystic, visionary, and as a medical writer and practitioner ...
Why is Hildegard of Bingen so notable music?
Hildegard of Bingen music is rooted in Gregorian chant. But, like much of her other work, her creative power imparted her music with a unique expressiveness that moved her music beyond some of the formal limitations of her time. The tonal range within her music is greatly expanded to high notes.

