Provides pictures and information of sound processing machines.
Musical Chest
In Japan, every family has
a chest called "Tansu." When a girl get married,
parents buy a Tansu and she put it to the new
house.
Usually, "Tansu" is a just chest. However, there
are some old Tansu that have musical function.
When a person pulls the chest, it makes sound.
It is a device for protecting thief.