Music publishing is the business of acquiring, protecting, and promoting song (composition) copyrights and collecting the royalties that these copyrights generate. Its main goal is to ensure that songwriters receive fair payment when their intellectual property—their musical works—are used by companies such as record labels (which pay mechanical royalties), radio stations, bars, and restaurants (which pay performance royalties), or film studios and advertising agencies (which pay sync license fees), among others. It is important to note that royalties are paid only to the writer of a song, not to performing artists or recording owners.