This is a musical picture book sharing with young readers knowledge about Chinese musical instruments. In ancient China, musical instruments were divided into eight categories – instruments made of metal, stone, clay, leather, string, bamboo, gourd and wood. Telling a 

story between the boy and his grandpa, this book reveals secrets of those instruments in the above order. Through an innovative integration of text, illustration, music and video, it enables young readers to know and feel more about Chinese music from different dimensions.