From the post-war, highly politicised folk clubs to the 1950s skiffle scene that captured the imagination of the nation's youth.
In the 1960s the folk boom takes hold, and bands like Fairport Convention and Pentangle bring the music into unexpected new places.
Folk-rock enters the 1970s mainstream, a political edge returns to music in Thatcher's Britain and, today, two very different scenes see folk music flourishing once more.