The exclusive right of a music copyright owner, granted by the Copyright Act, to authorize the mechanical reproduction of a musical work in a record, cassette or CD, or the reproduction of a musical work onto the soundtrack of an audio/visual work.
The license issued by a publisher or his agent, usually to a record company, granting the record company the right to record and release a specific composition at an agreed upon fee per unit manufactured and sold.
In the case of audio/visual productions, the license of Reproduction Rights in a musical composition is often referred to as a synchronization license. This refers to the right to synchronize the composition in timed relation with visual images on the film or tape. The song is synchronized with images on the screen, hence the name. In other words, people producing films, TV programs, commercials, or videos must obtain a synchronization license that allows them to use copyrighted music to fit the scenes of a visual product.