I did something of this nature a little while ago and I'll admit I am in a bit of a pickle trying to reverse the process. Create a new folder on your desktop. Name it "music" for example then you can highlight all of the songs in your shared folder and just drag and drop them to the folder that you created on your desktop.

P.S. If you go to my post (my only one being that I just experienced the problem and signed up tonight) and know how to fix it that would be great.

Have a good day