photo: tuman photography Figure 7. Role of Sidewalls vs. Seats In the 650-seat Clark Center for the Performing Arts, the sidewalls are dedicated to essential acoustical performance, stage lighting positions, possible observation/special effects, continuous technical circulation, and architectural/acousticacal articulation of the space. Seating layout creates varied sections for varying audience sizes, with significant vertical rise for sightlines. 42 theatre design & technology F A L L 2008