The story that lies in the box

Exploration Stage: Mural House
From: Yuri
Description: Are you saying that my hand-cranked organ is suspicious? You can take this apart if it will help your investigation, but this is an ordinary organ that can be found everywhere... an organ that plays a melody from a beautiful ancient legend. Would you like to see the legend?
Completed: The original drawing of this melody was painted by my brother. Each cylinder inscribed with a piece of music that I put into my hand-cranked organ has a different worldview, and the listener is immersed in that world. But it has never driven people crazy.