Chapter 2 Primitive Music

------Ancient valley of two great rivers (Tigris and Euphrates) is important human cultural cradle.Rich Mesopotamia area's(Iran and Iraq) music has developed and had professional singer and bigger band in temporal royal court.Then these more advanced music gradually spreaded into Egypt、Greece and Chian such as ancient coutries and was developed farther.Though there were some differences,the essential developed direction of them was the similar that common customs music gradually developed into sacred music.