Seven years ago, I asked Bruce Springsteen what he meant when he talked of the covenant between himself and his audience. It was a long, thoughtful and thorough answer, and when I transcribed it, I realised he would have won Just a Minute, so clear was his reply. Part of what he said was this: ‘I have built up the skills to be able to provide, under the right conditions, a certain transcendent evening, hopefully an evening you’ll remember when you go home.