José Melchor de Nebra Blasco (1702 – 1768) was a prominent Spanish composer and organist of the Baroque period, particularly noted for his contributions to the zarzuela, a form of Spanish musical theater. Born in Seville, he became known for his ability to blend traditional Spanish folk elements with the stylistic influences of Italian opera. Nebra's notable works include "La Parténope," "Los dos hidalgos de la Mancha," and "El nuevo sistema," which showcase his innovative approach to melody and harmony. He also composed sacred music, with a significant body of liturgical works, including masses and motets. His impact on music is most notably seen in the evolution of the zarzuela, where he helped elevate the genre's status through sophisticated musical structures and dramatic expression. Nebra's work laid the groundwork for future Spanish composers and influenced the development of national musical identity in Spain. His legacy endures as a key figure in the transition from Baroque to Classical styles in Spanish music.