Carl Philipp Emanuel Bach (1714-1788) was a German composer and keyboardist, and the second surviving son of Johann Sebastian Bach. He is often associated with the transition between the Baroque and Classical periods, particularly within the genre of early Classical music. C.P.E. Bach's most notable works include his keyboard sonatas, symphonies, and chamber music, with the "Hamburg Symphonies" and "Prussian Sonatas" standing out as significant contributions. His compositions are characterized by expressive melodies, innovative harmonic structures, and a nuanced use of dynamics, which influenced contemporaries and later composers, including Haydn and Mozart. Bach served as a court musician in Berlin and later as the music director in Hamburg, where he played a crucial role in the development of the empfindsamer Stil, or "sensitive style," which emphasized emotion and individuality. His work laid the groundwork for the evolution of the sonata form and the symphonic genre, earning him recognition as a pivotal figure in Western classical music. C.P.E. Bach's legacy endures through his influence on the Classical style and the appreciation of expressive musical language.