The Indianapolis Symphony Orchestra (ISO) is a professional orchestra based in Indianapolis, Indiana. Founded in 1930, it performs a wide range of classical and contemporary music. The ISO is known for its diverse programming, including concerts, educational outreach, and community events, making classical music accessible to a broad audience. The orchestra performs at the Hilbert Circle Theatre, a historic venue in downtown Indianapolis. The ISO collaborates with various guest artists and conductors, enhancing its performances. Additionally, the orchestra is involved in numerous community initiatives, aiming to inspire and engage people of all ages through the power of music.