I was referencing his intense desire of "preservation". Maybe this article explains it better. I had the belief that he ended up preserving an item of human leather in his personal museum. That may or may not be a rumor, but he did desire to put his own skeleton in the museum.

https://www.atlasobscura.com/articles/the-lust-branch-private-matters-of-eccentric-musician-percy-grainger

https://www.classicfm.com/discover-music/latest/percy-grainger-peculiar-passions/