Originally Posted By: Acumowchek
I'm going to recreate my Libraries from scratch. I'm sure it's human error.
I don't think that would help it show up on the desktop, nor should it help it to show up in iTunes. Maybe trashing everything iTunes in Preferences and and the music folder would work. Don't throw the stuff out, just move it to the desktop. Quit iTunes first of course

In the Menu bar, go to Finder/Preferences. In Sidebar and General you can choose to have externals disks etc show up.

If those are checked and it doesn't show up in the Finder, hmm.

Reboot with it plugged in maybe?