1. The idea of a self playing music box was developed from the carillon bell towers used in Europe where a rotating barrel, pinned with cogs in certain positions, would move hammers to strike tuned bells at the proper time to produce music.
的思想，自我发挥音乐盒是发达国家从carillon钟水塔使用在欧洲何处旋转桶，形格势禁，与cogs在某些职位，会动议锤罢工调谐钟，在适当时机，以制作音乐。