Annotations are text fields, functioning like a miniature wiki, that can be added to any existing artists, labels, recordings, releases, release groups and works.

Their purpose is to add information that usually doesn't fit into the strict structural data schema of MusicBrainz (be it due to technical limitations that may be addressed later, or because the information in itself has to be free-text).

The content of an annotation can be edited by any MusicBrainz user. Like the rest of the database, if something is incorrect or incomplete, you can fix it. All changes are recorded and if someone deletes or defaces the annotation, you can easily restore a previous copy.

Uses of annotations

You should never add copyrighted content copied from other resources, be they online or printed. More generally, you really shouldn't copy/paste any kind of content, unless it's purely factual.

That being said, here are some things you can add to annotations:

Technical information

Wiki formatting

You may use the following wiki formatting in your annotations.

Note that anything else won't work - especially not interwiki links, and not html markup.

As square brackets are used for hyperlinks, you have to use the encoded html equivalents ([ for [ and ] for ]) if you don't want them to be converted into hyperlinks. Example: If you want to use [unknown] in the annotation, you'll have to write [unknown].

Entity merges and removals

When an entity is deleted, all versions of the annotation attached to it are lost. When two entities are merged, their annotations are too: if the entity being merged had an annotation, the text will be appended to the end of the destination entity's annotation and their histories will get merged.