Copyright Free Music Versus Royalty Free Music
Copyright law protects the owner and gives him the right to prevent others from copying, publicly performing their work or creating derivatives of their work. You may only copy or create a derivative once you get permission from the rightful owner for the music for videos.
Copyright free music is any kind of audio or recording that does not need any clearance or permission to use. Basically, a work or property is copyright free if the copyright has already expired or the copyright holder has given up or transferred all the rights. Usually, if it found in the public domain, then it is copyright free.
What are royalties? A royalty is the revenue or income earned from a copyrighted work. Artists are able to allow reproductions of their works by charging a royalty payment. This is why authors, musicians and artists earn a lot from royalties.
When there is no more royalty being charged then the work is considered royalty free. There are conditions and stipulations, however, on how a royalty free work may be used such as places or circumstances where it is used; that the work be used "as is" or not transformed in any way; and that it is not to be used to create another work for commercial sale. Royalty free music allows the purchaser to use the music and stock audio as many times as he wants and he will only need to pay once for the music license.
Copyright free music is not the same as royalty free music
There are plenty of misconceptions about copyright music and royalty free music. First off, there is no such thing as "copyright free music" because any creator would automatically own the copyright to his work. In this case, the creator is simply allowing anyone to use or giving the right to copy his music for any purpose.
Simply said, it does not imply that the music is free of copyright, but rather, it is free to use by any one and for any purpose. Royalty free music may also be referred to as library music or stock music. When a licensee purchases the royalty free content, he or she can utilize the licensed content for as long he or she wants without any need for additional payments. This does not necessarily mean that the licensee owns the content copyright because this will always rightfully remain with the creator. Royalty free music should also not be mistaken for copyright free music.
At https://www.britannica.com/topic/digital-rights-management you could find other related stories.