Golden section

a mathematical proportion where the ratio between a small section and a larger section is equal to the ratio between the larger section and both sections put together. used by many 20th century composers to determine the point of climax for a given work.<br><br>A ratio of height to width to length of a room to achieve "good acoustics" and first recommended by the ancient Greeks. The ratio is approximately the width 1.6 times the height and the length 2.6 times the height