Most operas begin with an overture, an orchestral introduction that includes many of the musical themes of the piece.
Answer:
It brought about a general revival in classical thought that mirrored what was going on in political and social arenas of the time, leading to the French Revolution. The primary Neoclassicist belief was that art should express the ideal virtues in life and could improve the viewer by imparting a moralizing message.
The artist decides, because whatever they want can be art
