Details
In the year 3023, in space, a cathedral is dedicated to Abbess Hildegard of Bingen. A late 20th century droid officiates. With her narrator, who dates from the beginning of the 21st century, they interpret the "Ave Maria" composed in the 12th century by the abbess. Exercise in the construction of a 3-voice polyphony from a plainsong summarily defined by neumes.