María Luisa Sepúlveda Maira (1898-1958) was a pioneering Chilean composer, pianist, educator, and music researcher. She was one of Chile's first female graduates in musical composition, known for creating educational vocal and instrumental works for the youth in Chile. Her compositions had a significant impact in both the Americas and Europe. She also engaged in musicological research, collecting Chilean folk music, and her work showcased a blend of nationalistic, impressionist, romantic, and avant-garde influences. In the early years of her career, Sepúlveda excelled in her studies and received several awards for her compositions. She was a prominent figure in Chilean music education, teaching piano and fostering the development of music curricula. She played a role in directing orchestras and was involved in various music societies and organizations. Her legacy is marked by her extensive contribution to Chilean music, including her collection of popular songs and compositions with influences from various musical styles. Despite her contributions, her work remains relatively obscure, particularly outside the realm of music students and educators in Chile. María Luisa Sepúlveda passed away in 1958, leaving behind a rich and diverse body of work that blended various musical influences and celebrated the cultural heritage of Chile.