'I've got a tune that will knock 'em, knock 'em flat', said Elgar, of the melody we know as Land of Hope and Glory. It is a song that brings a lump to the throat for millions when it is sung at the Proms and has become a second national anthem. In time of war it becomes a rallying cry. And yet for many it is aggressive and outdated and belongs to an imperial past that bears no relation to the Britain of today. Everyman dips a toe in to the current waters of patriotism by taking a fresh look at an old song through the eyes of five people in and around this year's Last Night of the Proms.