MusicBrainz Tag: Difference between revisions

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#REDIRECT [[MusicBrainz Picard]]
=MusicBrainz Metadata Tags (ID3 and Vorbis/FLAC Comment)=

'''Status:''' [[Image:Alert.png]] ''The information on this page is outdated. There are a lot more tags by now, which are all not documented here.''

Applications that read or write metadata tags from music files should follow one consistent specification for what [[MusicBrainz]] information is stored where and in what tag. That way all the work of the various tagger applications will contribute to a well connected and clean body of metadata. Any application that deals with music should be able to read the [[MusicBrainz Identifier|MusicBrainzIdentifier]]<code><nowiki></nowiki></code>s from a music file in order to communicate unambiguously about the music it's working with.

==ID3v2 Tag specifications==

See [[ID3v2 Tags|ID3v2Tags]] for a list of proposed frames tagger applications could write.

===General Frames===

The following tags are used for the regular information from the database:
{| border="1"
|-
| TPE1: || [Main artist name]
|-
| TALB: || [Album name]
|-
| TIT2: || [Track title]
|-
| TRCK: || [Track number in album]
|}

Also the non-standard frame <code><nowiki>TCMP</nowiki></code> is used for iTunes' "Part of Compilation" description. It is 0 for a single artist album and 1 for a multiple artist album.

====Artist Sortname====

The artist sortname should really be stored in a ID3v2.4 frame called TSOP, but that is not supported under ID3v2.3. For writing ID3v2.3 tags, a XSOP frame that is formatted like a regular text frame should be used. You should never write a XSOP frame in ID3v2.4 tag.
{| border="1"
|-
| XSOP: || [Artist sortname]
|}

The text encoding field of this frame should be set to whatever encoding is being used for the TPE1, TIT2 and TALB track. Given that [[MusicBrainz]] uses UTF-8 to store its data, you should choose encoding $03 (UTF-8) if you plan to store MB data without changing its encoding. '''However, the UTF-8 encoding is only available in ID3v2.4.''' Alternatively use encoding $01 (UTF-16) if you're writing ID3v2.3 or earlier tags. (see [http://www.id3.org/id3v2.4.0-frames.txt ID3v2.4 specification] for more details on X??? frames)

====Release Date====

ID3v2.3 is missing a standard frame for a detailed date. Therefore an extra frame <code><nowiki>XDOR</nowiki></code> is added. So, in ID3v2.3:
{| border="1"
|-
| TORY: || [Release year]
|-
| XDOR: || [Complete release date]
|}

In ID3v2.4 only one frame is used:
{| border="1"
|-
| TDRL: || [Complete release date]
|}

===Music Brainz Identifier===

To store the [[MusicBrainz Identifier|MusicBrainzIdentifier]]<code><nowiki></nowiki></code>s in an ID3v2 tag, you will need to use a UFID frame for the Track Id, and up to four TXXX user defined text frames for the artist, album, album artist and trm identifiers. Please note that for ease of use the ID3 frames are specified to use ISO 8859-1. However, the types of characters used to express these tags are the same in ISO 8895-1 and UTF-8, since UTF-8 is backward compatible with 7-bit ASCII.

====MusicBrainz Track Identifier:====

<ul><li style="list-style-type:none">UFID frame
</ul>
{| border="1"
|-
| Owner identifier: || <code><nowiki> http://musicbrainz.org </nowiki></code>
|-
| Identifier: || [mb track uuid]
|}
<ul><li style="list-style-type:none">(see section 4.1 in the [http://www.id3.org/id3v2.4.0-frames.txt ID3v2.4 specification])
</ul>

====MusicBrainz Artist Identifier:====

<ul><li style="list-style-type:none">TXXX User defined text information frame
</ul>
{| border="1"
|-
| Text encoding || $00 (ISO-8859-1)
|-
| Description || <code><nowiki> MusicBrainz Artist Id </nowiki></code>
|-
| Value: || [mb artist uuid]
|}
<ul><li style="list-style-type:none">(see section 4.2.6 in the [http://www.id3.org/id3v2.4.0-frames.txt ID3v2.4 specification])
</ul>

====MusicBrainz Album Identifier:====

<ul><li style="list-style-type:none">TXXX User defined text information frame
</ul>
{| border="1"
|-
| Text encoding || $00 (ISO-8859-1)
|-
| Description || <code><nowiki> MusicBrainz Album Id </nowiki></code>
|-
| Value: || [mb album uuid]
|}
<ul><li style="list-style-type:none">(see section 4.2.6 in the [http://www.id3.org/id3v2.4.0-frames.txt ID3v2.4 specification])
</ul>

====MusicBrainz Album Artist Identifier:====

This identifier is used to indicate the artist for the album if the tracks on the album are from various artists. Currently, only an artist id of 89ad4ac3-39f7-470e-963a-56509c546377 is being used to indicate that this track comes from a various artist album. If this field is not present, the track comes from an album where all tracks were created by the same artist.
<ul><li style="list-style-type:none">TXXX User defined text information frame
</ul>
{| border="1"
|-
| Text encoding || $00 (ISO-8859-1)
|-
| Description || <code><nowiki> MusicBrainz Album Artist Id </nowiki></code>
|-
| Value: || [mb album artist uuid]
|}
<ul><li style="list-style-type:none">(see section 4.2.6 in the [http://www.id3.org/id3v2.4.0-frames.txt ID3v2.4 specification])
</ul>

====MusicBrainz TRM Identifier:====

<ul><li style="list-style-type:none">TXXX User defined text information frame
</ul>
{| border="1"
|-
| Text encoding || $00 (ISO-8859-1)
|-
| Description || <code><nowiki> MusicBrainz TRM Id </nowiki></code>
|-
| Value: || [mb trm uuid]
|}
<ul><li style="list-style-type:none">(see section 4.2.6 in the [http://www.id3.org/id3v2.4.0-frames.txt ID3v2.4 specification])
</ul>

==Vorbis/FLAC comment specifications==

To store the [[MusicBrainz]] identifiers in an Ogg Vorbis comment stream or a FLAC file you will need to use the following comments. Remember that Vorbis/FLAC comments fields are in '''UTF-8''', and they should follow these [http://reactor-core.org/ogg-tag-recommendations.html recommendations].

====MusicBrainz Track Identifier:====

{| border="1"
|-
| Comment name: || <code><nowiki> MUSICBRAINZ_TRACKID </nowiki></code>
|-
| Comment value: || [mb track uuid]
|}

====MusicBrainz Artist Identifier:====

{| border="1"
|-
| Comment name: || <code><nowiki> MUSICBRAINZ_ARTISTID </nowiki></code>
|-
| Comment value: || [mb artist uuid]
|}

====MusicBrainz Album Identifier:====

{| border="1"
|-
| Comment name: || <code><nowiki> MUSICBRAINZ_ALBUMID </nowiki></code>
|-
| Comment value: || [mb album uuid]
|}

====MusicBrainz Album Artist Identifier:====

See comments above in ID3 section.
{| border="1"
|-
| Comment name: || <code><nowiki> MUSICBRAINZ_ALBUMARTISTID </nowiki></code>
|-
| Comment value: || [mb album artist uuid]
|}

====MusicBrainz TRM Identifier:====

{| border="1"
|-
| Comment name: || <code><nowiki> MUSICBRAINZ_TRMID </nowiki></code>
|-
| Comment value: || [mb trm uuid]
|}

====MusicBrainz Artist Sortname====

{| border="1"
|-
| Comment name: || <code><nowiki> MUSICBRAINZ_SORTNAME </nowiki></code>
|-
| Comment value: || [mb artist sortname]
|}

----[http://www.musicbrainz.org/docs/specs/metadata_tags.html OriginalVersion]

[[Category:To Be Reviewed]] [[Category:Documentation]]

Latest revision as of 22:52, 20 May 2015

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