Jacinto Guerrero was perhaps one of the most beloved and prolific zarzuela composers from the twentieth century, writing a lot more than 200, on the pace of several per year. He also had written popular tracks and, early in his profession, sacred music. Guerrero researched on the Madrid Conservatory. Upon graduation, he was a violinist on the Teatro Apolo, ultimately getting the orchestra’s conductor. His initial zarzuelas had just moderate successes, but his tracks were well-known. In 1921, his zarzuela La alsaciana was a significant hit. Following successes included La montería in 1922, Los gavilanes, another season, Huesped del Sevillano, in 1926, Un ama, in 1931, and Tiene razon don Sebastian, in 1944. During his many years of top efficiency for the movie theater, he also had written music for Spanish movies, including Perform re mi o la vida privada de el tenor (a remake of Don Quintin un amargao), and Definiciones. He also led journeying zarzuela troupes, in order to popularize the genre beyond Spain.