More than 200 concerts take place at Symphony Center each year, most notably by the Chicago Symphony Orchestra, whose season runs from September to June. The south end of the main entrance has push-button doors. Wheelchair seating (with either fixed or moveable companion seating) is available on the main floor, box level, upper balcony, gallery and terrace. In addition, there are 30 swing-arm aisle seats. For large power chairs, seating is limited—please give advance notice when booking in order to be properly accommodated. Accessible restrooms can be found on the lower level and fourth, sixth and seventh floors. Large print programs for Chicago Symphony Orchestra concerts and wireless headsets for the hall’s assistive listening system are available from ushers before the concert. For opera performances, captioning is provided. Patrons who are blind or have low vision can request an escort from greeters stationed in the lobby.