The performing arts differ from the plastic arts insofar as the former uses the artist's own body, face, presence as a medium, and the latter uses materials such as clay, metal or paint which can be molded or transformed to create some art object. - Wikipedia at: http://en.wikipedia.org/wiki/Performing_arts Amy Sample Ward

Opera is a form of theatre in which the drama is conveyed wholly or predominantly through music and singing. - Wikipedia at: http://en.wikipedia.org/wiki/Opera Amy Sample Ward