From WiKirby, your independent source of Kirby knowledge.
"Castle/Building Area" is a stage theme that can be heard in Kirby & The Amazing Mirror. This theme plays specifically in both Moonlight Mansion and Carrot Castle. So far, this theme has not been remixed or brought back in any other Kirby game.
Exploring the area of Carrot Castle.
"Castle/Building Area" is composed in A major and seems to sound somewhat similar to "Vegetable Valley". The theme can be split into two sections. The first portion has a melody that is played by a high pitched instrument which is repeated again in a slightly different manner. After this, the second portion starts with an ascending melody and bass. The key ascends from G, to B-flat to B, and then D-flat major. After a cowbell-like instrument plays, the 22-second theme loops.
Names in other languages
Shiro Kenzōbutsu Eria