Franz Joseph Haydn (1732-1809) was an Austrian composer who spent much of his career writing works for the Esterházy family in Hungary. He is known for introducing humor into his works through unexpected musical elements. His symphonies and string quartets followed sonata form and featured development throughout. Important works include his string quartets, symphonies, and the oratorio The Creation. Wolfgang Amadeus Mozart (1756-1791) was a child prodigy composer from Salzburg who toured extensively as a performer. He was influenced by various styles he encountered in England, Italy, and Vienna. Mozart composed in many genres including symphonies, concertos,