I thought about making one of those square recorders when a church near me scrapped its pipe organ. I've got a bunch of eight-foot pipes. Whoop-de-doo, a next-to-free contrabass.

I soon discovered it wasn't quite that easy. Organ pipes are designed to work at just one frequency, and most of the ones I got were stopped. They would make narrow-range swannee whistles and that's about it. They also need VAST amounts of air. I've been thinking of hooking them up to a couple of mainframe computer cooling fans to act as drones.