Here's how I did it. (I'm still learning as well)
Click the first song in iTunes.
Hold down the "shift" key and click the LAST song. This will highlight all of your songs.
Right click on the highlighted songs and click "Clear" You'll get a pop-up asking if you are sure that you want to delete them, blah blah blah. Click yes.
You will get a second pop-up asking if you want to DELETE the files (move to the recycle bin) or keep the files in the iTunes music folder. KEEP THEM!
Then just go clean up and reorganize and then import them back into iTunes when you get them how you want them.