The Madison Symphony Orchestra (MSO) is an orchestra headquartered in Madison, Wisconsin. Its conductor is John DeMain, who began his 30th season with the orchestra in the fall of 2023. The orchestra was founded in 1925 as a small community ensemble and is now a full-sized, professional orchestra. In addition to presenting eight triple-performance subscription concerts, the MSO also offers an array of Education and Community Engagement Programming for all ages including young people's concerts, musician residency programs, and guest artist master classes.