I know theres not much in them. When I was a kid there use to be a house across the farm from us and it was abandon. A two story house with a basement full of furniture and nick nacks. The owners just up and left. Use to love going over there and snooping in the house. They had an old piano in the living room. I was such a curious kid, so I opened it up to see how they were made. Pretty neat, all those strings.