|A major influence on the development of European music, Haydn's work was known and appreciated far afield from his native Austria. His prodigious musical output included over one hundred symphonies, some fifty concertos, dozens of string quartets, masses, sonatas,and various compositions for voice, among others. The Creation and The Seasons are two of the most popular of Haydn's later works. One of the most celebrated composers of his day, Haydn was briefly a teacher of Beethoven, although the association was apparently not entirely successful. The young Mozart was also brought to Haydn who immediately appreciated the youth's greatness.