A Festival of Nine Lessons and Carols from King's College, Cambridge is one of the world's most famous choral occasions. Taking place on Christmas Eve in the iconic chapel, the reflective, moving and ultimately joyful journey through music and scripture is broadcast annually to millions. For this special edition of the Gramophone Podcast, Editor Martin Cullingford met with Director of Music Daniel Hyde to explore what makes this service so beloved, and to talk more generally about the acclaimed choir.