Jacinto Guerrero (1899-1952) was a prominent Spanish composer and conductor, renowned for his contributions to the genre of zarzuela, a traditional Spanish lyric-dramatic genre that combines spoken and sung elements. Born in the province of Toledo, Guerrero became one of the leading figures in Spanish music during the early to mid-20th century, characterized by his ability to blend popular melodies with classical influences. Notable works by Guerrero include "La rosa del azafrán" (1930), "Los gavilanes" (1939), and "El huésped del sevillano" (1940). His compositions often reflect the rich cultural heritage of Spain, incorporating regional themes and rhythms, which resonated with audiences and helped popularize zarzuela during a time of significant social and political change in the country. Guerrero's impact on music is marked by his role in revitalizing the zarzuela form, making it accessible and appealing to contemporary audiences. His works continue to be performed and celebrated, contributing to the ongoing legacy of Spanish musical theatre. His influence is evident in the way he integrated popular folk elements into classical frameworks, paving the way for future generations of composers in Spain.