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Bleak news on the classical music front this week, including Sir Simon Rattle's departure from the London Symphony Orchestra in favour of the Bavarian Radio Symphony Orchestra in Munich; and reports that musicians touring in the EU will need work permits for each individual country they perform in. Tom Service talks to Charlotte Higgins of The Guardian, and Jamie Njoku-Goodwin of UK Music to make sense of it all.

We hear about the little-known Welsh chanting tradition of Can’r Pwnc, and how the Cardiff theatre company August 012 is remoulding the style as a frame for ancient love poetry.

The American scholar Rachel May Golden has written a new book on southern French troubadours during the time of the Crusades, showing how many of their songs were effectively pro-Crusader proaganda - and she follows the stories of troubadours such as Jaufre Rudel, who died during the Second Crusade, according to legend in Tripoli the arms of his lover.

American jazz composer Wynton Marsalis joins Tom to trumpet his views contemporary America, as reflected in his new album The Democracy! Suite, released in the week leading up to the inauguration of the 46th President of the United States. Marsalis hopes that jazz. as America's own music, can inspire Americans to find ways to heal the divisions.