The music of Hildegard of Bingen has come down to us in only two sources, one of which is known as the Dendermonde Codex, named after the abbey in the Belgian town where it is now housed. We'll hear Psallentes, a Belgian ensemble specializing in chant, performing selections from this codex. We'll also hear them singing 14th and 15th century chant from Tongeren.

• Anon.: Processional: Gaude Virgo. Performed by Psallentes. 
• Hildegard of Bingen: O chohors militiae floris. Performed by Per-Sonat. 
• Hildegard of Bingen: Antiphon: O magne Pater. Performed by Psallentes. 
• Anon.: Lux praeclara. Performed by Psallentes.
• Hildegard of Bingen: Antiphon: O eterne Deus. Performed by Psallentes.