Original: O. Orzchis Ecclesia. O. Orzchis Ecclesia by Zanichelli. Ensemble San Felice. Bardazzi. 1098-1179.
Translation: By Hildegard Of Bingen. and Hildegard of Bingen. Listening CD. CD-Rom. Published by Brilliant Classics. NX.BRI94273. ISBN 5028421942735.