Royalty free music

_Royalty free music refers to musical productions a license of use of which we can acquire: once this bought license, we can use the piece as often as stipulated in a contract of sale and use drafted between the salesman and the buyer without having to pay of supplementary Royalty.
It does not mean that by buying a piece of music free of rights we become an owner of the piece. Terms of service are clarified in the licensing agreement.
It happens that multimedia companies (cinema, television, advertising, radio, Internet, software) need music for their projects; it can be complicated and expensive, notably because of the traditional structures of payment which ask to release supplementary rights for every custom. To answer at the request of the market, several companies offer musics free of rights on their catalogs.