On April 30, "World Expo Horn -- opening ceremony of wind band week of 2008 Shanghai Spring International Music Festival, excellent artwork performance of audio logo for 2010 World Expo Shanghai China" was held in Shanghai. Over 40 wind bands domestic and overseas participate in the performance. Excellent artwork of audio logo for 2010 World Expo Shanghai China took the first step in the opening ceremony of wind band week. Since April 30 last year when Expo Shanghai Bureau issued the Announcement for Collection of Audio Logo for 2010 World Expo Shanghai China and proposed the concept of "audio logo for Expo Shanghai", the organizer has received several thousand pieces of artwork. The scores of pieces of artwork are created by musicians from China, Australia, Austria, Germany and so on.