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Guy Chambers and Rufus Wainwright write a ballad

1 July 2011 Last updated at 11:10 BST

How do you write a pop ballad?

Canadian singer Rufus Wainwright joined chart-topping songwriter Guy Chambers in his studio to unravel the secrets of songwriting.

The three-part series Secrets of the Pop Song begins on BBC Two on Saturday 2 July at 2145 BST.