BBC Sounds: Alex Stevenson explores how a concert between the Parliament Choir and the German Bundestag Choir marking World War I created an opportunity for political diplomacy.
The Guardian Documentary: video
The Parliament Choir is one of the few institutions in Palace of Westminster where party allegiance does not matter. We join MPs, peers, researchers and administrative staff from across the political spectrum as they fine-tune their dings and dongs ready for their annual Christmas concert.