Metadata can mean many things, but in music terms refers to the additional data about the music or song that travels with the music file for informational and rights management purposes. This may include rights holder information, who are the writers and their percentage share of the publishing splits. Metadata can also be specific search criteria and information like moods, lyrics, beats per minute, era and release date for example. Metadata may be contained within the ID3 Tags of an mp3 file, WAV file headers, inside of digital watermarks and many other ways.
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