Mozart's music, like Haydn's, stands as an archetype of the Classical style. At the time he began composing, European music was dominated by the style galant, a reaction against the highly evolved intricacy of the Baroque. Progressively, and in large part at the hands of Mozart himself, the contrapuntal complexities of the late Baroque emerged once more, moderated and disciplined by new forms, and adapted to a new aesthetic and social milieu. Mozart was a versatile composer, and wrote in every major genre, including symphony, opera, the solo concerto, chamber music including string quartet and string quintet, and the piano sonata. These forms were not new, but Mozart advanced their technical sophistication and emotional reach. He almost single-handedly developed and popularized the Classical piano concerto. He wrote a great deal of religious music, including large-scale masses, as well as dances, divertimenti, serenades, and other forms of light entertainment.
The central traits of the Classical style are all present in Mozart's music. Clarity, balance, and transparency are the hallmarks of his work, but simplistic notions of its delicacy mask the exceptional power of his finest masterpieces, such as the Piano Concerto No. 24 in C minor, K. 491; the Symphony No. 40 in G minor, K. 550; and the opera Don Giovanni. Charles Rosen makes the point forcefully:
It is only through recognizing the violence and sensuality at the center of Mozart's work that we can make a start towards a comprehension of his structures and an insight into his magnificence. In a paradoxical way, Schumann's superficial characterization of the G minor Symphony can help us to see Mozart's daemon more steadily. In all of Mozart's supreme expressions of suffering and terror, there is something shockingly voluptuous
Especially during his last decade, Mozart exploited chromatic harmony to a degree rare at the time, with remarkable assurance and to great artistic effect.
Mozart