When I "get art" from the "3" music app it works and displays fine, but when I use the stock or "elliot stocker" music app not all the art shows up. Any way to add album art to the stock music app.
You don't add them to the app. You need to add them to the music file itself using something to edit the tags. If you're syncing or copying music from a PC then make sure the tags in the files on your PC are updated as well.