The piano belongs to gold, and the piano that you don't play will soon be out of tune. If it is out of tune, there will be no gold, and the piano will become wood, so sometimes it is gold and sometimes it is wood. The piano dominates this wonderful relationship.
If a piano is not used, it should be removed, because if it is not used, it will become a very wooden thing. Unless the family wants wood, a broken piano has completely lost its gold. If your children want money, you buy a piano, which makes them very lucky.