Artist/musician Christopher Marclay went around Berlin posting music staff paper and inviting people to write on it. “My aim was to create a collective score made by the people of Berlin,” he says. “Did many people actually write music? “Yes, surprisingly, perhaps because Berliners are so cultured musically. Of the 800 photographs of these posters I made a selection of 150, which make up the ‘score’.” Since then the score has been interpreted in vastly different ways, which is natural enough, given that the mixture of squiggles, images, notes and words is hardly precise.”