Some of my songs are greyed out on iTunes?
Some of my songs on iTunes are greyed out. I cannot play them, nor can I edit them or delete them. It gives me the option to delete but when I click it, they do not delete. I tried looking in my Music folder through my computer folders and the songs are not listed. When I went to the iTunes store to try and redownload them, it says they are 'Downloading' but they obviously are not. I have a Macbook Pro. It won't let me try to put the songs on my iPhone either because they are greyed out. I do not have iTunes match. This problem does not involve my iPhone 5. Just a problem with iTunes. Can someone help me? Thanks!
iPhone 5, iOS 6.1.4