This week's show features music inspired by the rolling hills and moorland of the border country between Scotland and England, a landscape of forbidding beauty with a turbulent history of feuds, raids and conflict.

Tune into the great new sounds — from both sides of the Atlantic — that artists are launching during the summer music festival season.

From The Chieftains' vintage collection The Very Best Of The Claddagh Years to Dusk Till Dawn, which telescopes the long and successful career of Capercaillie, we explore some of Celtic-roots music's finest "best of" compilations.

Travel from the 1920s, with legendary fiddlers Michael Coleman and James Morrison, to the thriving 1970s session scene and hear the evolving sound of Irish traditional music in the U.S.

This week's show includes music from Liz Carroll, The Flanagan Brothers, Laurence Nugent, The Green Fields Of America and more.