Margaret Ruthven Lang (1867-1972) was an American composer and pianist, notable for being one of the first women to gain recognition in the field of classical music. Her works primarily fall within the genres of art song and chamber music, showcasing her skill in lyrical melodies and harmonies. Lang's compositions often reflected her deep understanding of traditional forms while also incorporating contemporary influences of her time. Among her notable works are the art songs "The Garden" and "The Nightingale," as well as chamber pieces such as "Sonata for Violin and Piano." She was known for her ability to set poetry to music effectively, and her songs were frequently performed in salons and concerts during her lifetime. Lang's impact on music extends beyond her compositions; she was an advocate for women's participation in the arts, helping to pave the way for future generations of female composers. She was a founding member of the Boston Chamber Music Society and played an active role in promoting the works of other women composers. Her legacy continues to inspire musicians and composers, highlighting the contributions of women in classical music.