Another picture of my new lute has just arrived from James its maker, this time of the sound board and rose. The wood, slow growing spruce from somewhere cold and dark, so the grain is fine, is plane to just over a millimeter in thickness, then carved freehand. Interestingly the patterns or knots that were used retained their ancient Islamic origin, even when the instrument had become thoroughly westernised, and was central to western secular music. It illustrates the power of tradition, even in the hands of craftsmen who do not understand it!
The geometry is supposed to say something specific about the infinite nature of God, but I haven't studied it yet.