Siegfried Ochs (1888–1951) was a German composer and conductor, recognized for his contributions to classical music in the early to mid-20th century. Ochs was associated with the avant-garde movement, blending traditional forms with innovative techniques. His music often displayed elements of expressionism and neo-classicism, reflecting the turbulent cultural landscape of his time. Notable works include his orchestral compositions, chamber music, and vocal pieces, with "Concerto for Orchestra" and various string quartets standing out. Ochs was also known for his orchestral arrangements and adaptations, contributing to the performance of contemporary works. Ochs's impact on music is notable for his role in promoting modernist compositions and enriching the repertoire of contemporary classical music. He was involved with various music festivals and organizations that supported new music, fostering a community that encouraged creative experimentation. His influence can be seen in the works of later composers who embraced similar avant-garde principles. While not as widely recognized as some of his contemporaries, Ochs remains an important figure in the evolution of 20th-century music, particularly in German-speaking countries.