I realize that. However, this is an international forum and copyright law varies, depending upon location.
According to US copyright law, there is a common law copyright that exists from the moment of work is produced. However, proving that is another story altogether. It all comes down to being able to prove in a court of law that you are the rightful owner of whatever work you’re trying to protect. most people do the website copyright protection process. Most people do the website copyright protection process. that’s fine as long as you understand that whatever the format is you copyrighted, that is what is protected. In Other words, if you copyrighted all those 10 songs together as a collection, then that is how they are protected. Not necessarily protected on an individual song by song basis, as a result.
As a professional songwriter and record producer, the experience I wish to share with you, is that you need a lawyer if you are really concerned about it. But you probably don't have much exposure. And if you have issues you'll need that lawyer.