This is the way the world will end – not with a bang but McCartney. I've nothing against McCartney. He has added to the world's stock of innocent pleasures. But life isn't an idle interval between Beatles songs. Or the songs of anyone else, come to that. Popular music is merely one pleasure among many. Ditto dancing. So I ask – are we capable, as a nation, of doing anything that doesn't begin with singing and dancing, isn't crowned by singing and dancing, indeed doesn't have singing and dancing at its core?