The main windchest fits across the front of the organ and most of the pipes are mounted
on its top.
I spent a lot of time working out the spacing for the pipes at each side as the measurements
on the plans did not seem right. The bass end is further complicated as there are
four pipes on top and another four underneath the windchest. As there is not sufficient
depth for the pallet magnets to overlap they must be interleaved. The photograph
of the inside of the bass end shows how they ended up.