Joseph Haydn, a titan of the classical period, stands as the eldest and most enduring of the revered 'First Viennese School' composers. Renowned as the 'father of the symphony,' Haydn's compositions revolutionized orchestral music, with his London Symphonies setting new standards for length and structure. Born in Austria in the 18th century, Haydn's influence extended beyond his own era, shaping the works of younger contemporaries like Beethoven, whom he mentored. His collaborations and interactions with fellow greats like Mozart add a rich layer to his legacy. Haydn's music, characterized by its innovation and depth, continues to captivate audiences worldwide, offering a timeless journey through the elegance and complexity of classical composition.