Many peoples believed that musics is one part of our lifes, because it has spirits wich is can bring hapiness and joy. And it also can present people feelings. Every countries in the world has their own music. In Indonesia there are a lots of types of traditional music, the famous one is called Gamelan. In the simply means Gamelan is music group wich refer to 20 different kinds of xylophonic, percussion - type enssembled. There are also many different between Javanese gamelan and Balinese gamelan.