by Stephen Thomas Erlewine Anonymous 4's Hildegard Von Bingen: 11,000 Virgins finds the quartet performing a selection of songs by the 12th Century composer Von Bingen, who wrote music for and about Saint Ursula and her companions the 11,000 Virgins. The music is a moving, powerful update of traditional Gregorian chants as sung by a contemporary female quartet and it is one of Anonymous 4's very best records.