Production Music, Stock Music, Library Music are all terms used to define recorded music that has been produced and is owned by Production Music Libraries, like TunEdge Music Services. The copyrights for the music in Production Music Libraries is typically owned by Production Music Libraries. This allows the libraries to licences the music to customers for use in Radio, TV, Film or any other type of media that would require a Synchronization License without getting the permission from the music composers.
For more information on Production Music visit: http://en.wikipedia.org/wiki/Production_music