However, if you use i Tunes for managing music not in i Tunes or home video files, etc., then you really have no choice but to store the content locally.
In this article, I’m going to show you how you can easily move your entire i Tunes library to an external drive.
Visit Stack Exchange Note: After you click OK, i Tunes copies any files that are added that weren't already in the i Tunes Media folder and places the copies in the folder.
For Mac users, open Finder and click on Music in the left-hand list of shortcuts.
In Windows, go to the location listed in the Advanced tab, which should be C:\Users\User Name\Music\. Go ahead and copy this folder to the root of your external hard drive by dragging and dropping it.
On a Mac, hold down the Option key and then click on i Tunes from the dock.
On Windows, hold down the SHIFT key and then double-click to open i Tunes.