landscape…" The flat surfaces of the rocks were placed outward facing and large boulders filled the interior space so concrete could be conserved. Natural light also played a major part in the design. In the drafting room, Wright used translucent canvas to act as a roof (later replaced by plastic because of the intense wear from the Arizona sun). In the south-facing dining room, Wright did not take the masonry walls from floor to ceiling, and designed the roof to hang past the walls preventing unwanted sun rays from penetrating but allowing for horizontal light to pass through the room. Wright believed natural light aided the work environment he had his apprentices in, keeping the inside of his building in touch with the natural surroundings. Every part of Taliesin West bears Frank Lloyd Wright's personal touch. Upon every return after a summer in Wisconsin Wright would grab a hammer and immediately make his way through the complex. He would walk through each room making changes or shouting orders to apprentices closely following with wheelbarrows and tools. He constantly changed and improved on his design fixing arising problems and addressing new situations. Throughout the years he enlarged the dining room, as well as added the cabaret theatre, music pavilion and numerous other rooms. All of the furniture and decorations were designed by Wright and the majority built by apprentices. A brilliant aspect of Wright's design is the cabaret theatre. Built with six sides, out of the standard rock-concrete mixture, in an irregularly hexagonal shape, the theatre provides its occupants with what someone has called "95% acoustic perfection". Someone sitting in the back row can hear the lightest whisper from a speaker on stage. Power lines controversy The view at Taliesin West was critical to its success. In the 1940s, Wright waged a battle against overhead power lines on aesthetic grounds. In the late 1940s when power lines appeared within the view of Taliesin West, Wright wrote President Harry S. Truman, demanding they be buried; it was a losing battle. So after briefly considering rebuilding in Tucson, he "turned his back on the valley," moving the entrance to the rear of the main building. Wright gravesite After his death in Phoenix on April 9, 1959, Wright was buried, in accordance with his wishes, next to the Unity Chapel in the Lloyd-Jones cemetery, near Taliesin in Wisconsin. His third wife Olgivanna's dying wish