Georg Matthias Monn (1717–1750) was an Austrian composer and musician of the early Classical period. His work is often associated with the transition from the late Baroque style to the emerging Classical aesthetic. Monn primarily composed instrumental music, including symphonies, chamber works, and keyboard pieces, showcasing a blend of Baroque complexity and the clarity of the Classical style. Notable works include his symphonies, particularly the "Symphony in D major," and numerous sonatas for keyboard instruments. His contributions to the symphonic genre helped pave the way for later composers like Joseph Haydn and Wolfgang Amadeus Mozart, as he emphasized thematic development and structural clarity. Monn’s music, characterized by its melodic grace and harmonic innovation, played a significant role in the evolution of orchestral music in the 18th century. Although he was not as widely recognized during his lifetime, his influence is acknowledged in the development of the symphony and sonata forms, marking him as an important figure in the transition to the Classical period in music history.