|Painting by Carl Bloch - Courtesy of Wikipedia|
More Ancient than the Primal World is written by the Benedictine Nuns of Stanbrook Abbey. In the Divine Office (1974) it is sung at Morning Prayer on the Feast of the Transfiguration of the Lord, August 6th. It is set to the anonymous tune associated with the 7th century Latin hymn: Creator Alme Siderum, as featured in the following video.
Tune: Creator Alme Siderum