Wolfgang Amadeus Mozart (born Johannes Chrysostomus Wolfgangus Theophilus Mozart; 27 January 1756 ??? 5 December 1791) is among the most significant and enduringly popular composers of European classical music. His enormous output includes works that are widely acknowledged as pinnacles of symphonic, chamber, piano, operatic, and choral music. Many of his works are part of the standard concert repertory and are widely recognized as masterpieces of classical music. Mozart's music, like Haydn's, stands as an archetypal example of the Classical style. His works spanned the period during which that style transformed from one exemplified by the style galant to one that began to incorporate some of the contrapuntal complexities of the late Baroque, complexities against which the galant style had been a reaction. Mozart's own stylistic development closely paralleled the development of the classical style as a whole. In addition, he was a versatile composer and wrote in almost every major genre, including symphony, opera, the solo concerto, chamber music including string quartet and string quintet, and the piano sonata. While none of these genres were new, the piano concerto was almost single-handedly developed and popularized by Mozart. He also wrote a great deal of religious music, including masses; and he composed many dances, divertimenti, serenades, and other forms of light entertainment. The central traits of the classical style can all be identified in Mozart's music. Clarity, balance, and transparency are hallmarks, though a simplistic notion of the delicacy of his music obscures for us the exceptional and even demonic power of some 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. The famed writer on music Charles Rosen has written (in The Classical Style): "It is only