I was hoping to post about Arabic music and discovered its among the most difficult topics to discuss, primarily due to the large number of countries and musical styles which the term nominally covers. In this case, the "classical" label is helpful in a fairly specific way, as opposed to the rather more vague manner in which it is applied to other world listings. Classical Arab music was defined by theorists during the classical age of the Arab Empire, and that definition continues to play a role today. While such a pan-Arab intellectual style is not as strong today as it once was, the various modern regional traditions have arisen from similar roots.