Classic \Clas"sic\, Classical \Clas"sic*al\, a. [L. classicus relating to the classes of the Roman people, and especially to the first class; hence, of the first rank, superior, from classis class: cf. F. classique. ] 1. Of or relating to the first class or rank, especially in literature or art.
Classical Western Music refers in particular to European music during the latter half of the 18th and the early 19th centuries or in general to Music in the educated European tradition, such as symphony and opera, as opposed to popular or folk music. Pakistani Classical Music is no different. It refers to music based on ancient musical traditions which have evolved through several thousand years. It is a part of the Indo Pakistan sub continent culture.
Technically, in very general broad terms, classical music can be defined by two basic elements - it must follow a Raaga(classical mode) and a specific rhythm or Taala.