Drag to turn; right-drag, shift-drag or move two fingers to slide the view; scroll or pinch to zoom in on whatever is under the pointer; double-click to turn round that point, and Reset view to go back. Pick a rosette above. Each is its cut file’s waste taken out of a square of 3mm plywood soundboard, with the engrave lines that mark the over/under on the face. The ribbon is the board that is left, and it runs on into the board round the rim at every anchor.