To the sound of melodies by Hildegard von Bingen, a 12th-century abbess and visionary, this singing walk will transport you back to the Middle Ages, within the Parc de l'Abbaye de Royaumont and the new collection of the Jardin aux Neuf Carrés. By coming into contact with the plants that surround us, you'll be immersed in the plant and musical world of Hildegard von Bingen, and you'll learn to discover with new eyes the wild herbs that our feet tread on every day. Sung a capella, Hildegard's melodies touch the soul and speak to the heart, and you might just catch a glimpse of Heaven on Earth.