Changes

This is far too European in view.  It does not take account of music outside of European and Judeo-Christian societies, such as Chinese music, native meso, south and north American music, African music, etcetera.  Please amend.

This is far too European in view.  It does not take account of music outside of European and Judeo-Christian societies, such as Chinese music, native meso, south and north American music, African music, etcetera.  Please amend.  I think you should also consider looking at the role of folk music in societies.  It is not purely for personal enjoyment, but as a way of venting and expressing frustrations and grievances.  Popular music is also a contributor to folk music, and takes much from folk music from around the world.  Blues is southern black folk, and blues is the root of rock and most other modern musical genres.  Classical music is also not the be all and end all in music, and it does not make you a more moral person if you listen to Mozart than if you listen to Alice Cooper.  It just makes you more pretentious.  In the past few centuries, music has seen a lot of change, and classical music was essentially the equivalent of popular music in its day.