Louis Couperin (c. 1626 – 1661) was a French composer and keyboardist, primarily known for his contributions to the Baroque music genre. He is often associated with the development of the French clavecin school and is considered one of the most significant early composers for the harpsichord. Couperin's notable works include a collection of harpsichord pieces, published posthumously as "Pièces de Clavessin" in 1668. His compositions are characterized by their intricate counterpoint, expressive melodies, and innovative use of ornamentation. He also composed a number of suites, which often incorporated dance forms, reflecting the French court's musical customs. His impact on music lies in his influence on later composers, particularly his nephew, François Couperin, who would carry forward the family legacy in French keyboard music. Louis Couperin's works serve as a bridge between the Renaissance and Baroque periods, showcasing the transition in musical styles and the evolution of keyboard techniques. His music remains a vital part of the harpsichord repertoire, celebrated for its artistry and emotional depth.