Ethel Glenn Hier (1893-1970) was an American composer and music educator known for her contributions to early 20th-century classical music. She primarily composed in the genres of classical and art music, focusing on choral, orchestral, and chamber works. Hier studied at the University of Southern California and became a prominent figure in the California music scene. Notable works include her choral compositions, such as "The Song of the Sea" and various arrangements of hymns and folk songs. Hier was also influential in music education, serving as a teacher and mentor to many young musicians and composers. Her work often emphasized the integration of American folk elements into classical forms, reflecting the cultural landscape of her time. Hier's impact on music extends beyond her compositions, as she played a significant role in promoting music education and fostering a community of musicians in California. Her contributions are recognized as part of the broader movement of women in music during the early 20th century, helping to pave the way for future generations of female composers and educators.