Background info on Haydn w/ thesis statement intorduced Franz Joseph Haydn born March 31st, 1732 in Rohrau, Austria was one of the most prolific and most celebrated composer’s of the classical music period. Productive in every standard medium, he composed 104 symphonies, 20 concertos, 68 string quartets, 29 keyboard trios, 126 baryton trios written in the Esterhazy court as requested by prince Nikolaus, 15 operas, 12 masses and many other works. It was these works that established his standards