Classical music is a very general term which normally refers to the standard music of countries in the western world. It is music that has been composed by musicians who are trained in the art of writing music (composing) and written down in music notation so that other musicians can play it. Classical music may also be described as "art music" though it was not good in classical period that term also Includes types of serious modern music which are not classical. Classical music differs from pop music because it is not made just in order to be popular for time or just to be a commercial success. It is different from folk music which is generally made up by ordinary members of society and learned by future generations by listening, dancing and copying.