Folk musicians come together in what have been called 'the greatest backporch shows ever'.

Musicians Aly Bain from Shetland and Jay Ungar from New York are joined by top country and traditional singers, songwriters and instrumentalists from Scotland, Ireland and North America.

In this edition, US star Emmylou Harris and Ireland's Mary Black sing Wheels of love, Canada's Michelle Wright performs Guitar Talk with Scotland's Karen Matheson, and Nashville star Kathy Mattea duets with Dougie MacLean from Scotland. Also on the bill, Iris DeMent, John Martyn, Russ Barenberg and Guy Clarke. Show less