Hermann Wolfgang Sartorius Waltershausen (1823–1900) was a German composer and music theorist, primarily associated with the Romantic era. He is known for his contributions to choral and orchestral music, as well as his pedagogical works in music theory. Waltershausen's notable works include choral compositions and arrangements that reflect the Romantic ideals of expressiveness and emotional depth. One of his significant contributions is the "Hymn of the Forest" (Waldhymne), which showcases his ability to blend lyrical melodies with rich harmonies, typical of the period’s aesthetic. In addition to his compositions, Waltershausen was influential in music education and theory. He authored several instructional texts, which became valuable resources for music students and educators, helping to shape music teaching in Germany during his time. His work emphasized the importance of understanding music theory as a foundation for composition and performance. While not as widely recognized as some of his contemporaries, Waltershausen's impact on choral music and music education contributed to the broader development of Romantic music traditions, fostering a deeper appreciation for emotional expression in music.