More than 200 music boxes and self-playing instruments from around the world are on display at all times, centering on the collection of the late Mr. Kiyoshi Sato, who worked to popularize music boxes. A cylinder-type music box that plays delicate sounds made with precise technology, a disc-type music box that was invented to further improve productivity and musicality, a powerful self-playing instrument Orchestrion, and a street organ that made the streets lively. You can enjoy a wide variety of exhibits. These exhibits are played by the staff (twice an hour for 10 minutes each), and you can enjoy the sounds of those days along with commentary.