The Four Inner Corners — flat-foldability, checked not claimed. 24 creases · 4 interior vertices · 8 mountain / 4 valley · sector angles 45°–135° Kawasaki and Maekawa hold at all 4 interior vertices. A vertex folds flat… https://foldsong.com/atlas/the-four-inner-corners/ #origami #papercraft

This week: three folds. https://foldsong.com/ #origami #papercraft

This week: three folds. Two from the Atlas of known patterns, one designed here. Each with a crease pattern, a printable template, a folding video and a piece of music. https://foldsong.com/ #origami #papercraft

“A washhouse basin that never sat level taught its own kind of balance, and this fold carries that same quiet pull toward one low corner, where the eye keeps sliding without ever quite falling.” The Slanted Basin · FSO-0008 https://foldsong.com/folds/the-slanted-basin/ #origami #papercraft

This week, played. Three folds, three pieces — each written from the angles of its own crease pattern. https://foldsong.com/ #origami #papercraft

The Four Inner Corners — the story behind the fold, 3:34. Where the pattern comes from, who folded it first, and what the geometry is doing. https://foldsong.com/atlas/the-four-inner-corners/ #origami #papercraft

The Slanted Basin — the story behind the fold, 3:38. Where the pattern comes from, who folded it first, and what the geometry is doing. https://foldsong.com/folds/the-slanted-basin/ #origami #papercraft

The Slanted Basin — the fold, played. The music is derived from the crease pattern: angles become intervals, layers become voices. FSO-0008 · https://foldsong.com/folds/the-slanted-basin/ #origami #papercraft