Tucson Symphony Orchestra

The Tucson Symphony Orchestra, or TSO, is the primary professional orchestra of Tucson, Arizona. Founded in 1928, when the season consisted of just two concerts, the TSO is the oldest continuously running performing arts organization in the Southwest. The TSO's season now runs from September to May and consists of over 60 concerts, including a Classics Series of eight programs, a Pops Series of four programs, a Masterworks series of five chamber orchestra programs, a number of one-night only specials, and run-out concerts to surrounding areas, such as Oro Valley, Green Valley, Bisbee, Safford, Thatcher, and Nogales.