A master-use license permits the licensee to use a copyrighted sound recording in a new project. Typically, licensees are seeking to use recordings in audiovisual projects, as a sample in a new audio recording, or for distribution. By obtaining a master-use license, the only rights being granted are to the sound recording. This means that any copyrighted composition embodied in the recording must be licensed separately.

5 Reasons to Learn Music Theory
Five good reasons why music theory is a must if you expect to perfect your musical talent.