Music has been an expression of many people from different cultures around the world since years even centuries ago. Music is created by cultures and music creates cultures itself. Every country has it unique traditional music also with its traditional instruments. Listening to the traditional music and looking to the traditional instruments, people could guess what type of culture, and what country is from. For example people know that "Country Music" is from America and Indonesia has many traditional instruments, two of them are "Angklung" and "Gamelan". Traditional music is very important because people could see an original cultural scene of a country expands from it. It is also could be as an identity or the uniqueness of a country.
Modern music that people often hear nowadays is an international music such as pop, rock, jazz, etc. Although it does not represents a country and social culture, many young people like this music most then the traditional one. With the modern music, the young generation could express themselves freely and it is good for the development of music in the world. Young generation combined those genres and makes the new genres. The international music also needed and has become basically used for business