Monday through Wednesday: Lifting the large windchestsWindchests are the long, flat wooden boxes on which the pipes rest. Inside each windchest are the pipe actions, small electronic devices that control the flow of air into each pipe. During the week, five large windchests were moved into place: one for the exposed Grand Orgue (Great) division in the center, and two each for the Recit (Swell) and Choeur (Choir) divisions enclosed in the side chambers.
