If you don't have Perfect International installed at home, take a USB flash drive and copy it directly in the Internet cafe. After arriving at the Internet cafe, open the game menu, right-click Perfect International and open the game directory. Many folders will be displayed after entering. Select the element, and then turn on the music. Perfect. All the music is in it. The sound inside includes insects, birds, water, weather and music in the scene environment. It's really nice, and I like it very much.