repertoire fridays: Hildegard von Bingen "O Virtus Sapientie" July 5, 2013 By sybariticsinger [youtube=http://www.youtube.com/watch?v=SK1mLpRxO3M&w=420&h=315] Hildegard von Bingen (1098 – 17 September 1179) "O Virtus …Continue Reading