The picture to the right is a simple but beautiful Mascheroni construction which results in the points for the unit square. (You can see lines for 2 sides of this square in the drawing.) Melissa Plagemann and Linda Strandberg sang a live musical rendition of this construction at the Anathem launch in San Francisco. A week ago, back in Seattle, they helped me by making a quick recording of the duet for my archives.
Here is a stream of my rough mix: