That’s an interesting theory, and not one I’d heard before. I’ve never been satisfied that the towns in the 580 were just there as the key to the next clue, but don’t know what else to use them for. I often wondered why the letters were displayed the way they were in the 580 picture. The letters BAG or 106 on one figure, with FEDC on the circle of the double bass, or 5432. Maybe this is meaningless, or obvious, but I’ve never known why it was displayed that way and wondered where that led.