Royalty Free Music means that with a one off payment you get a non-exclusive, lifetime synchronization license for a piece of music, giving you the right to use the music in as many productions as you like without having to pay any more. You can use the music in many ways, as background for your video, TV programme, films and many other audio-visual applications. The only condition is that you must use the music in synchronization with other media, whether you add a voice over to make a Radio advert or synchronize it to images to complement a documentary or TV programme.