Argeliers León (1902–1991) was a Cuban composer, musicologist, and educator renowned for his contributions to both classical and popular music in Cuba. He is primarily associated with genres such as classical, Cuban folk, and contemporary music. León's works often reflect a blend of traditional Cuban elements with modern compositional techniques. Among his notable compositions are "Sonata No. 1 for Piano" and "Concerto for Piano and Orchestra," which showcase his innovative approach to rhythm and melody. Additionally, he was instrumental in the revival of the Cuban danza and the bolero, incorporating these forms into his classical works. León also played a significant role in music education in Cuba, influencing generations of musicians through his teaching and writings. His impact on music extends beyond his compositions; he actively promoted the appreciation of Cuban music, helping to elevate its status both nationally and internationally. León's legacy is marked by his commitment to the fusion of traditional Cuban music with classical forms, making him a pivotal figure in the development of a distinct Cuban musical identity in the 20th century.