After the complexity of the Baroque, composers sought clarity, balance, and elegance. The Classical era valued form above all — the symphony, the string quartet, and the piano sonata were perfected here. Music became less ornate, more structured, and more emotionally direct.
The era coincided with the Enlightenment — reason, order, and the idea that art should be accessible and uplifting. Public concerts replaced private court performances. The middle class became an audience for the first time.
Three composers define the era: Haydn (who invented the symphony and string quartet as we know them), Mozart (who brought everything to a peak of perfection), and Beethoven (who pushed so hard against the era's constraints that he broke them open and created the Romantic era).