A master use license grants permission to use someone else's recording in your video.
These licenses are generally controlled by record labels. Tresóna cannot issue master use licenses through our Licensing Exchange - you must get permission from the copyright owners directly.
In addition to obtaining a master use license for your project, you will also need to obtain a sync license for your video. While a master use license gives you permission to use the specific recording of the song you've chosen, the sync license gives you permission to use the underlying composition.