It could be that I'm over-thinking Drupal categories/taxonomy/etc, but I can't get a handle on it. Say I want to have a hierarchy that looks like this:

-Books
---Music
---Art

-Magazines
---Music
---Art

Should Books/Music and Magazines/Music be completely separate entities, or can a single "Music" category peacefully exist as a child category in both the Books and Magazines hierarchy?

Apologies if this question makes no sense. I'm getting a headache just thinking about it.

B