David Grant visits the medieval town of Dunster to take part in their candlelit procession and to sing special Somerset carols, and Katie Melua performs O Holy Night. Music: The First Nowell from Romsey Abbey, Romsey Christ Be Our Light from All Saints Church, Cheltenham O Holy Night by Katie Melua The Calypso Carol from St Oswald and St Edmund Arrowsmith Catholic Church, Wigan Do You Hear What I Hear? by Russell Watson What Child Is This? from the Hackney Empire, London I Saw Three Ships from The Monastery, Gorton.