The Last Era in Which That Could Have Been Done

There was no text book for building a giant organ in a cave. And so robert's dad had to invent all these parts and processes along the way. Especially when it came to the waterproofing, my dad thought, well, maybe we could just cote it with something. So he got a lot of beeswax and a hot plate,. And then i would dip the magnetic pickups in the beeswax. And i would do this repeatedly until ficient coating had been applied.