María Luisa Sepúlveda Maira (1898-1958) was a Chilean composer, pianist, educator, and music researcher. She was among the first women in Chile to earn a degree in musical composition. Sepúlveda created many educational songs and instrumental pieces aimed at young people in Chile. Her music reached audiences in both the Americas and Europe. She also studied Chilean folk music and combined different styles in her work, such as nationalistic, impressionist, romantic, and avant-garde influences. Early in her career, Sepúlveda stood out in her studies and earned awards for her compositions. She became an important figure in music education in Chile, teaching piano and helping to develop music programs. She also took part in leading orchestras and was active in several music groups and organizations. Her efforts helped promote music learning and appreciation in her country. Sepúlveda's work left a lasting mark on Chilean music, including her collections of popular songs and her pieces that mixed many musical styles. Despite her achievements, much of her work remains little known outside of Chilean music students and teachers. She died in 1958, leaving behind a wide and varied collection of music that honored Chilean culture and blended many influences.