In the first of two special programmes for Easter, choirmaster Gareth Malone and gospel choir conductor Karen Gibson travel round the UK to uncover the stories, music and traditions that have marked this most important of Christian festivals both in the past and today. From the stunning island of Lindisfarne to a Welsh mountain with a unique connection to Good Friday, Gareth finds out what links Easter to some of the country's most stunning historic sites. Meanwhile, Karen unravels the origins of one of the best-known Good Friday hymns and, with her mum, revisits some of the traditions she grew up with. And, as the pair join the preparations for events in York and Birmingham, they explore Easter's relevance in Britain today.