Tomorrow's Music Matters includes Pollini and Zimerman, "who talk candidly about the role the music of Chopin has played in their lives."
Contributions from Kenneth Hamilton and Adam Zamoyski, Chopin biographer, whose book is being read, abridged, for Book of the Week each day next week on Radio 4, 9.45 am/12.30 am. and presumably BBC iplayer too.
You'll find some more info and pics on the site below:
http://www.bbc.co.uk/programmes/b00rd4vd