Ordo Virtutum
Ordo Virtutum ( Latin for "Order of the Virtues" ) is an allegorical morality play , or sacred music drama , by St . Hildegard , composed c . 
<triplet> Ordo Virtutum <subj> St. Hildegard <obj> author <triplet> St. Hildegard <subj> Ordo Virtutum <obj> notable work