This museum near Kyoto has some locomotives and pianos.
In Arashiyama on Lake Biwa near Kyoto.
The following locomotives are on display: D51-51, C56-98, C58-48, 040T no 1, plus smokebox of D51-603
Pianos; paintings by Monet (6 on railways)
There was a report on this museum in Japanese Railway Society magazine Bullet-In 56
Museum Website (Japanese)