In the 18th century, Italian opera was dominated by the Baroque tradition of opera seria, which featured noble plots and virtuosic displays. New developments included opera buffa, focusing on everyday characters and comedy. Gluck's operatic reforms emphasized natural plots and music serving the drama. Mozart mastered both opera seria and buffa, composing serious works like Idomeneo and comic masterpieces like Le Nozze di Figaro and Don Giovanni, helping weaken distinctions between serious and comic opera.