We met secretly at a flat in South Kensington. Eric Clapton had asked me to come because he wanted me to listen to a new number he had written.
He switched on the tape machine, turned up the volume and played me the most powerful, moving song I had ever heard. It was Layla, about a man who falls hopelessly in love with a woman who loves him but is unavailable.
He played it to me two or three times, all the while watching my face intently for my reaction. My first thought was: 'Oh God, everyone's going to know this is about me.'
It's a great story.