The Hildegard Organ Cycle (VII. Preparation for Christ)

Luca Massaglia (http://www.lucamassaglia.com/) plays "Preparation for Christ" (no. 7 from "The Hildegard Organ Cycle") by American composer Frank Ferko (b. 1950).

Hildegard von Bingen (1098-1179) was a German writer, composer, philosopher, Christian mystic, Benedictine abbess, visionary, and polymath.
The last and probably most important of her three theological writings was a lenghty discourse on ten of her holy visions which was titled "De operatione Dei". In both the German and English translations of this writings, each of the visions is titled.
Each of the ten movements of "The Hildegard Organ Cycle" is a musical depiction of one of these holy visions, and each is titled accordingly.
The book "Scivias" by Hildegard ends with a set of poetic verses which herself set to music and titled "Symphonia armonie celestium revelationum" ("Symphony of the Harmony of Celestial Revelation"); there are more than 70 musical pieces, mostly antiphons, and from these five chant melodies have been selected to form the musical foundation of "The Hildegard Organ Cycle".
"Preparation for Christ" is based on the chant "O splendidissima gemma" ("O Most Splendid Jewel ").