Not for jazz

We have an old musical instrument. It is called a clavichord. It was made in Germany in 1681. Our clavichord is kept in our living room. It has belonged to our family for a long time. The instrument was bought by grandfather many years ago. Recently it was damaged by a visitor. She tried to play jjazz on it. She struck the keys too hard and two of strings were broken. My father was shocked. Now we are not allowed to touched it. It’s being repaired by a friend of my father’s.