What Folder Is The iCloud Folder In?

Moving files to iCloud drive, won't free up space on your computer. Consider subscribing to iTunes Match instead, it's much cheaper and will do what you want.

What Folder Is The iCloud Folder In?

iCloud Drive is an alias to the following folder:

~/Library/Mobile Documents

Ever since updating ti El Captain the Finder sidebar has been all jacked up like this, anytime I try to save something or upload a file and the window opens, the sidebar with all my stuff is just blank.

I'm not sure what you mean by that.

The library is hidden and it's hidden for good reason, most users will break things by fiddling in there.

If you don't see iCloud Drive in the Finder window check whether it's checked in your Finder preferences.

I maintain that your proposed action is not a good idea and that you would be st using iTunes Match.

Are you sure?

Of course, but what you are attempting to do is not a good idea for reasons Winston Churchill explained, as well other reasons. I suggest you use iTunes the way it was designed to work, or find another organizational solution for your music.

But like I said, it's when I go to save files or upload files, that is when El Capitan has been emptying out the sidebar.

The Sidebar should appear when you click the icon at the upper left in the screenshot you posted – the one that appears directly above the word "Shared".

If that does not work for you, then it would appear that something corrupted your OS X installation. What that is cannot be determined, but it is probably related to a Finder Preferences file. You can attempt any number of means to isolate and correct the cause, but the usual remedy is to reinstall OS X. It may help to simply apply the latest Combo update for your version of OS X. For El Capitan: Download OS X El Capitan 10.11.3 Combo Update

alanchrishughes wrote:

How do you un-hide the folder the iCloud folder is in so that one can navigate to it?

You can unhide the library folder by holding down the alt key when you reveal the go menu in the finder, but you still can't see inside the folder you were told about above.

You need to sort out the problem you are having with the finder (not quite sure what it is) rather than fiddling with system files.

alanchrishughes wrote:

I'm not seeing any "Mobile Documents" folder in the Library folder. Are you sure?

That may be because it is not in the location you are looking. Look on this path ~/library/Mobile Documents, and you will find it.

I was able to locate the "Mobile Documents" folder by pressing the alt key as you said, but that doesn't seem to work when in the iTunes settings.

Provide step-by-step instructions for doing what you're doing. For example, if I launch iTunes on the Mac, then choose the iTunes menu > Preferences... > Advanced, then the Change... button adjacent to the iTunes Media folder location field, a standard file dialog box appears including the usual Sidebar choices:

I assume that is not consistent with your observations. Is that correct?

You should be able to drag anything to the Sidebar, including your ~/Library folder or any of its contents, and that is exactly what should appear in a standard file dialog box. If that's not the case, something is corrupted as I wrote earlier.

I really don't know how iTunes will react to moving your iTunes Media folder to iCloud Drive. It's an interesting idea though.