Part Two of Six. Huw Stephens and Sian Eleri tell the story of Welsh language pop in the 1970s. A decade of rock, revolution and a once-in-generation referendum. Of protest, prison and punk rock.

That proved to be their breakthrough, spawning the top 10 singles Broken Down Angel and Bad ... popular band, with the title track becoming a staple of 1970s rock radio. That album's bluesy ...