Jean-Baptiste Lully fils (1664–1743) was a French composer and musician, known primarily for his contributions to the development of French opera and orchestral music. He was the son of the renowned composer Jean-Baptiste Lully, who significantly shaped the baroque music landscape in France. Lully fils's works often reflect the stylistic traits of the French baroque period, incorporating elements of dance, drama, and rich orchestration. Notable works include his operas, such as "Les Festes de l'Amour et de Bacchus" and "Thésée," which showcase his ability to blend vocal and instrumental music. He also composed various ballets and instrumental suites that were popular in the royal courts. Lully fils's impact on music is significant as he helped establish the French operatic tradition and contributed to the evolution of orchestration techniques. His works influenced subsequent generations of composers, particularly in the realm of opera, and his emphasis on the integration of music and theatrical performance laid the groundwork for later developments in the genre. Despite being overshadowed by his father's legacy, Lully fils remains an important figure in the history of French baroque music.