The Musical sound is any tone with characteristics such as controlled pitch and timbre. From the tinkle of a bell to the slam of a door, any sound is a potential ingredient for the kinds of sound organization called music. Music arises from human behaviour, and the study of human behaviour is part of biology. Some believe that folk music originated as art music that was changed and probably debased by oral transmission, while reflecting the character of the society that produced it. In many societies, especially preliterate ones, the cultural transmission of folk music requires learning by ear, although notation has evolved in some cultures. Different cultures may have different notions concerning a division between "folk" music on the one hand and of "art" and "court" music on the other. In the proliferation of popular music genres, some traditional folk music became also referred to "World music" or "Roots music". The most significant variations in musical exposure are where people belong to totally different cultures and each culture has its own distinct type of music. Not only are the tunes different, but the scales that the tunes live on are different. This five volume encyclopaedia book is an effort to collect folk music play in various parts of the world. This collection will be emensaly useful reference for students of musicoloty and all those interested and related to the music field in any manner.