Beethoven’s Ninth Symphony could be the world’s most famous piece of music. “Next month, when it is auctioned at Sotheby’s, a copyist’s manuscript of the work, replete with Beethoven’s last scribbled revisions, is expected to fetch more than any manuscript of classical music has done before. If the ninth symphony is the most powerful symbol of absolute music in the classical music canon, it is also the most politicised work of all time.”