Clemmie becomes playlist pen pals with London night tsar and 6 Music DJ Amy Lamé after bonding over music by Bach and Bingen. Plus: music for a late journey home, and why musical boundaries should be knocked down.

Amy's playlist in full

JS Bach: Sanctus from Mass in B Minor

John Cage: In a Landscape Canteloube: Songs of the Auvergne (No 2 Bailero) Max Richter: Mercy Wagner: Tannhauser Overture Hildegard von Bingen: O virtus Sapientie