# Common Metadata

Common tags, and _native_ to _common_ tag mappings. _n_ indicates the multiplicity.
The tag mapping is strongly inspired on the [MusicBrainz Picard tag-mapping](https://picard.musicbrainz.org/docs/mappings/).

| Common tag                 | n | Description                                                                                                                                                                                    | ID3v1   | ID3v2.2 | ID3v2.3                                                                           | ID3v2.4                                                                           | iTunes                                                  | vorbis                                           | APEv2                               | asf                               | exif       | matroska                   | AIFF |
|----------------------------|---|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------|---------|-----------------------------------------------------------------------------------|-----------------------------------------------------------------------------------|---------------------------------------------------------|--------------------------------------------------|-------------------------------------|-----------------------------------|------------|----------------------------|------|
| year                       | 1 | Year                                                                                                                                                                                           | year    | TYE     | TYER                                                                              | TYER                                                                              |                                                         |                                                  |                                     |                                   | YEAR       |                            |      |
| track                      | 1 | Track number on the media, e.g. `{no: 1, of: 2}`                                                                                                                                               | track   | TRK     | TRCK                                                                              | TRCK                                                                              | TRKN                                                    | TRACKNUMBER                                      | TRACK                               | WM/TrackNumber                    | ITRK, IPRT | TRACK:PART_NUMBER          |      |
| disk                       | 1 | Disk or media number, e.g. `{no: 1, of: 2}`                                                                                                                                                    |         | TPA     | TPOS                                                                              | TPOS                                                                              | DISK                                                    | DISCNUMBER                                       | DISC, DISCNUMBER                    | WM/PartOfSet                      |            | ALBUM:PART_NUMBER          |      |
| title                      | 1 | Track title                                                                                                                                                                                    | title   | TT2     | TIT2                                                                              | TIT2                                                                              | ©NAM                                                    | TITLE                                            | TITLE                               | Title                             | INAM, TITL | SEGMENT:TITLE, TRACK:TITLE | NAME |
| artist                     | 1 | Literal written track artist e.g.: `"Beth Hart & Joe Bonamassa"`. If not directly specified in a tag, this is automatically filled with `common.artists`.                                      | artist  | TP1     | TPE1                                                                              | TPE1                                                                              | ©ART                                                    | ARTIST                                           | ARTIST                              | Author                            | IART       | TRACK:ARTIST               | AUTH |
| artists                    | * | Track artists e.g.: `["Beth Hart", "Joe Bonamassa"]`. If not directly specified in one or more tag, this is automatically filled with `common.artist`                                          |         |         | TXXX:ARTISTS, TXXX:DISCOGS_ARTISTS, TXXX:DISCOGS_ARTIST_NAME                      | TXXX:ARTISTS, TXXX:DISCOGS_ARTISTS, TXXX:DISCOGS_ARTIST_NAME                      | ----:COM.APPLE.ITUNES:ARTISTS                           | ARTISTS, DISCOGS_ARTISTS, DISCOGS_ARTIST_NAME    | ARTISTS                             | WM/ARTISTS                        |            |                            |      |
| albumartist                | 1 | Literal written album artist e.g.: `"Beth Hart & Joe Bonamassa"`                                                                                                                               |         | TP2     | TPE2, TXXX:DISCOGS_ALBUM_ARTISTS                                                  | TPE2, TXXX:DISCOGS_ALBUM_ARTISTS                                                  | AART, ----:COM.APPLE.ITUNES:BAND                        | ALBUMARTIST, ALBUM ARTIST, DISCOGS_ALBUM_ARTISTS | ALBUM ARTIST                        | WM/AlbumArtist                    |            | ALBUM:ARTIST               |      |
| album                      | 1 | Album title                                                                                                                                                                                    | album   | TAL     | TALB                                                                              | TALB                                                                              | ©ALB                                                    | ALBUM                                            | ALBUM                               | WM/AlbumTitle                     | IPRD, IRPD | ALBUM:TITLE                |      |
| date                       | 1 | Date, formatted like: YYYY-MM-DD                                                                                                                                                               |         | TDR     | TDRV, TDRC, TXXX:DISCOGS_RELEASED                                                 | TDRV, TDRC, TXXX:DISCOGS_RELEASED                                                 | ©DAY                                                    | DATE, DISCOGS_RELEASED                           | YEAR                                | WM/Year                           | ICRD       |                            |      |
| originaldate               | 1 | Original (initial) release date, formatted like: YYYY-MM-DD                                                                                                                                    |         | TOR     | TDOR, TXXX:DISCOGS_DATE                                                           | TDOR, TXXX:DISCOGS_DATE                                                           | ----:COM.APPLE.ITUNES:ORIGINALDATE                      | ORIGINALDATE, DISCOGS_DATE                       | ORIGINALDATE                        | WM/OriginalReleaseTime            |            | ALBUM:DATE_RECORDED        |      |
| originalyear               | 1 | Original (initial) release year                                                                                                                                                                |         |         | TORY, TXXX:ORIGINALYEAR                                                           | TORY, TXXX:ORIGINALYEAR                                                           | ----:COM.APPLE.ITUNES:ORIGINALYEAR                      | ORIGINALYEAR                                     | ORIGINALYEAR                        | WM/OriginalReleaseYear            |            |                            |      |
| releasedate                | 1 | Release date, formatted like: YYYY-MM-DD                                                                                                                                                       |         |         | TDRL                                                                              | TDRL                                                                              | ----:COM.APPLE.ITUNES:RELEASEDATE                       | RELEASEDATE                                      | RELEASEDATE                         |                                   |            | ALBUM:DATE_RELEASED        |      |
| comment                    | * | Comments                                                                                                                                                                                       | comment | COM     | COMM                                                                              | COMM                                                                              | ©CMT, ©COM, ----:COM.APPLE.ITUNES:NOTES                 | COMMENT                                          | COMMENT                             | Description                       | COMM, ICMT |                            | ANNO |
| genre                      | * | Genres                                                                                                                                                                                         | genre   | TCO     | TCON, TXXX:STYLE                                                                  | TCON, TXXX:STYLE                                                                  | ©GEN, GNRE                                              | GENRE, STYLE                                     | GENRE                               | WM/Genre                          | GNRE, IGNR | TRACK:GENRE                |      |
| picture                    | * | Embedded cover art                                                                                                                                                                             |         | PIC     | APIC                                                                              | APIC                                                                              | COVR                                                    | METADATA_BLOCK_PICTURE                           | COVER ART (FRONT), COVER ART (BACK) | WM/Picture                        |            | PICTURE                    |      |
| composer                   | * | Composer                                                                                                                                                                                       |         | TCM     | TCOM                                                                              | TCOM                                                                              | ©WRT                                                    | COMPOSER                                         | COMPOSER                            | WM/Composer                       |            |                            |      |
| lyrics                     | * | Lyricist                                                                                                                                                                                       |         |         | USLT, SYLT                                                                        | USLT, SYLT                                                                        | ©LYR                                                    | LYRICS                                           | LYRICS                              | WM/Lyrics                         |            |                            |      |
| albumsort                  | 1 | Album title, formatted for alphabetic ordering                                                                                                                                                 |         | TSA     | TSOA                                                                              | TSOA                                                                              | SOAL                                                    | ALBUMSORT                                        | ALBUMSORT                           | WM/AlbumSortOrder                 |            |                            |      |
| titlesort                  | 1 | Track title, formatted for alphabetic ordering                                                                                                                                                 |         | TST     | TSOT                                                                              | TSOT                                                                              | SONM                                                    | TITLESORT                                        | TITLESORT                           | WM/TitleSortOrder                 |            |                            |      |
| work                       | 1 | The canonical title of the [work](https://musicbrainz.org/doc/Work)                                                                                                                            |         |         |                                                                                   |                                                                                   | ©WRK                                                    | WORK                                             | WORK                                | WM/Work                           |            |                            |      |
| artistsort                 | 1 | Track artist, formatted for alphabetic ordering                                                                                                                                                |         | TSP     | TSOP                                                                              | TSOP                                                                              | SOAR                                                    | ARTISTSORT                                       | ARTISTSORT                          | WM/ArtistSortOrder                |            | TRACK:ARTISTSORT           |      |
| albumartistsort            | 1 | Album artist, formatted for alphabetic ordering                                                                                                                                                |         | TS2     | TSO2                                                                              | TSO2                                                                              | SOAA, ----:COM.APPLE.ITUNES:ALBUMARTISTSORT             | ALBUMARTISTSORT                                  | ALBUMARTISTSORT                     | WM/AlbumArtistSortOrder           |            | ALBUM:ARTISTSORT           |      |
| composersort               | 1 | Composer, formatted for alphabetic ordering                                                                                                                                                    |         | TSC     | TSOC                                                                              | TSOC                                                                              | SOCO                                                    | COMPOSERSORT                                     | COMPOSERSORT                        | WM/ComposerSortOrder              |            |                            |      |
| lyricist                   | * | Lyricist                                                                                                                                                                                       |         | TXT     | TEXT                                                                              | TEXT                                                                              | ----:COM.APPLE.ITUNES:LYRICIST                          | LYRICIST                                         | LYRICIST                            | WM/Writer                         |            |                            |      |
| writer                     | * | Writer                                                                                                                                                                                         |         |         | TXXX:WRITER                                                                       | TXXX:WRITER                                                                       |                                                         | WRITER                                           | WRITER                              |                                   | IWRI       |                            |      |
| conductor                  | * | Conductor                                                                                                                                                                                      |         | TP3     | TPE3                                                                              | TPE3                                                                              | ----:COM.APPLE.ITUNES:CONDUCTOR                         | CONDUCTOR                                        | CONDUCTOR                           | WM/Conductor                      |            |                            |      |
| remixer                    | * | Remixer(s)                                                                                                                                                                                     |         |         | TPE4                                                                              | TPE4                                                                              | ----:COM.APPLE.ITUNES:REMIXER                           | REMIXER                                          | MIXARTIST                           | WM/ModifiedBy                     |            |                            |      |
| arranger                   | * | Arranger(s)                                                                                                                                                                                    |         |         | IPLS:ARRANGER, TIPL:ARRANGER                                                      | IPLS:ARRANGER, TIPL:ARRANGER                                                      |                                                         | ARRANGER                                         | ARRANGER                            |                                   |            |                            |      |
| engineer                   | * | Engineer(s)                                                                                                                                                                                    |         |         | IPLS:ENGINEER, TIPL:ENGINEER                                                      | IPLS:ENGINEER, TIPL:ENGINEER                                                      | ----:COM.APPLE.ITUNES:ENGINEER                          | ENGINEER                                         | ENGINEER                            | WM/Engineer                       | IENG       |                            |      |
| producer                   | * | Producer(s)                                                                                                                                                                                    |         |         | IPLS:PRODUCER, TIPL:PRODUCER                                                      | IPLS:PRODUCER, TIPL:PRODUCER                                                      | ----:COM.APPLE.ITUNES:PRODUCER                          | PRODUCER                                         | PRODUCER                            | WM/Producer                       |            |                            |      |
| technician                 | * | Technician who digitized subject                                                                                                                                                               |         |         |                                                                                   |                                                                                   |                                                         |                                                  |                                     |                                   | ITCH       |                            |      |
| djmixer                    | * | Mix-DJ(s)                                                                                                                                                                                      |         |         | IPLS:DJ-MIX, TIPL:DJ-MIX                                                          | IPLS:DJ-MIX, TIPL:DJ-MIX                                                          | ----:COM.APPLE.ITUNES:DJMIXER                           | DJMIXER                                          | DJMIXER                             | WM/DJMixer                        |            |                            |      |
| mixer                      | * | Mixed by                                                                                                                                                                                       |         |         | IPLS:MIX, TIPL:MIX                                                                | IPLS:MIX, TIPL:MIX                                                                | ----:COM.APPLE.ITUNES:MIXER                             | MIXER                                            | MIXER                               | WM/Mixer                          |            |                            |      |
| label                      | * | Release label name(s)                                                                                                                                                                          |         | TPB     | TPUB, TXXX:DISCOGS_LABEL                                                          | TPUB, TXXX:DISCOGS_LABEL                                                          | ----:COM.APPLE.ITUNES:LABEL                             | LABEL, DISCOGS_LABEL                             | LABEL                               | WM/Publisher                      |            | TRACK:PUBLISHER            |      |
| grouping                   | 1 | Content group description. Used to group track titles in sections.                                                                                                                             |         | TT1     | TIT1, GRP1                                                                        | TIT1, GRP1                                                                        | ©GRP                                                    | GROUPING                                         | GROUPING                            | WM/ContentGroupDescription        |            |                            |      |
| subtitle                   | * | Contains the subtitle of the content                                                                                                                                                           |         | TT3     | TIT3                                                                              | TIT3                                                                              | ----:COM.APPLE.ITUNES:SUBTITLE                          | SUBTITLE                                         | SUBTITLE                            | WM/SubTitle                       |            |                            |      |
| discsubtitle               | 1 | The Media Title given to a specific disc                                                                                                                                                       |         |         | TSST                                                                              | TSST                                                                              | ----:COM.APPLE.ITUNES:DISCSUBTITLE                      | DISCSUBTITLE                                     | DISCSUBTITLE                        | WM/SetSubTitle                    |            |                            |      |
| totaltracks                | 1 | The total number of tracks                                                                                                                                                                     |         |         |                                                                                   |                                                                                   |                                                         | TRACKTOTAL, TOTALTRACKS                          |                                     |                                   |            | ALBUM:TOTAL_PARTS          |      |
| totaldiscs                 | 1 | The total number of discs                                                                                                                                                                      |         |         |                                                                                   |                                                                                   |                                                         | DISCTOTAL, TOTALDISCS                            |                                     |                                   |            | EDITION:TOTAL_PARTS        |      |
| compilation                | 1 | Is part of compilation (unofficial iTunes Compilation Flag)                                                                                                                                    |         | TCP     | TCMP                                                                              | TCMP                                                                              | CPIL                                                    | COMPILATION                                      | COMPILATION                         | WM/IsCompilation                  |            |                            |      |
| rating                     | * | Object holding rating score [0..1] (0.0 worst rating, 1.0 best rating) and source (e.g. user e-mail)                                                                                           |         |         | POPM                                                                              | POPM                                                                              | RATE                                                    | RATING                                           |                                     | WM/SharedUserRating               | RATE       |                            |      |
| bpm                        | 1 | Beats Per Minute (BPM)                                                                                                                                                                         |         | TBP     | TBPM                                                                              | TBPM                                                                              | TMPO                                                    | BPM                                              | BPM                                 | WM/BeatsPerMinute                 |            |                            |      |
| mood                       | 1 | Keywords to reflect the mood of the audio, e.g. "Romantic" or "Sad"                                                                                                                            |         |         | TMOO                                                                              | TMOO                                                                              | ----:COM.APPLE.ITUNES:MOOD                              | MOOD                                             | MOOD                                | WM/Mood                           |            |                            |      |
| media                      | 1 | Release format                                                                                                                                                                                 |         |         | TMED                                                                              | TMED                                                                              | ----:COM.APPLE.ITUNES:MEDIA                             | MEDIA                                            | MEDIA                               | WM/Media                          | IMED       |                            |      |
| catalognumber              | * | [Release catalog number(s)](https://musicbrainz.org/doc/Release/Catalog_Number)                                                                                                                |         |         | TXXX:CATALOGNUMBER, TXXX:DISCOGS_CATALOG, TXXX:CATALOGID                          | TXXX:CATALOGNUMBER, TXXX:DISCOGS_CATALOG, TXXX:CATALOGID                          | ----:COM.APPLE.ITUNES:CATALOGNUMBER                     | CATALOGNUMBER, DISCOGS_CATALOG, CATALOGID        | CATALOGNUMBER                       | WM/CatalogNo                      |            |                            |      |
| tvShow                     | 1 | TV show title                                                                                                                                                                                  |         |         |                                                                                   |                                                                                   | TVSH                                                    |                                                  |                                     |                                   |            |                            |      |
| tvShowSort                 | 1 | TV show title, formatted for alphabetic ordering                                                                                                                                               |         |         |                                                                                   |                                                                                   | SOSN                                                    |                                                  |                                     |                                   |            |                            |      |
| tvSeason                   | 1 | TV season title                                                                                                                                                                                |         |         |                                                                                   |                                                                                   | TVSN                                                    |                                                  |                                     |                                   |            |                            |      |
| tvEpisode                  | 1 | TV episode title                                                                                                                                                                               |         |         |                                                                                   |                                                                                   | TVES                                                    |                                                  |                                     |                                   |            |                            |      |
| tvEpisodeId                | 1 | TV episode ID                                                                                                                                                                                  |         |         |                                                                                   |                                                                                   | TVEN                                                    |                                                  |                                     |                                   |            |                            |      |
| tvNetwork                  | 1 | TV network                                                                                                                                                                                     |         |         |                                                                                   |                                                                                   | TVNN                                                    |                                                  |                                     |                                   |            |                            |      |
| podcast                    | 1 | _ToDo, see [issues #13](https://github.com/Borewit/music-metadata/issues/13)_                                                                                                                  |         | PCS     | PCST                                                                              | PCST                                                                              | PCST                                                    |                                                  |                                     |                                   |            |                            |      |
| podcasturl                 | 1 | _ToDo, see [issues #13](https://github.com/Borewit/music-metadata/issues/13)_                                                                                                                  |         | WFD     | WFED                                                                              | WFED                                                                              | PURL                                                    |                                                  |                                     |                                   |            |                            |      |
| releasestatus              | 1 | See [releases status](https://wiki.musicbrainz.org/History:Release_Status)                                                                                                                     |         |         | TXXX:MUSICBRAINZ ALBUM STATUS                                                     | TXXX:MUSICBRAINZ ALBUM STATUS                                                     | ----:COM.APPLE.ITUNES:MUSICBRAINZ ALBUM STATUS          | RELEASESTATUS                                    | MUSICBRAINZ_ALBUMSTATUS             | MusicBrainz/Album Status          |            |                            |      |
| releasetype                | * | [Release type](https://musicbrainz.org/doc/Release_Group/Type), e,g,: Album                                                                                                                    |         |         | TXXX:MUSICBRAINZ ALBUM TYPE                                                       | TXXX:MUSICBRAINZ ALBUM TYPE                                                       | ----:COM.APPLE.ITUNES:MUSICBRAINZ ALBUM TYPE            | RELEASETYPE                                      | MUSICBRAINZ_ALBUMTYPE               | MusicBrainz/Album Type            |            |                            |      |
| releasecountry             | 1 | [Release country](https://wiki.musicbrainz.org/Release_Country) describes the country in which an album was released.                                                                          |         |         | TXXX:MUSICBRAINZ ALBUM RELEASE COUNTRY, TXXX:RELEASECOUNTRY, TXXX:DISCOGS_COUNTRY | TXXX:MUSICBRAINZ ALBUM RELEASE COUNTRY, TXXX:RELEASECOUNTRY, TXXX:DISCOGS_COUNTRY | ----:COM.APPLE.ITUNES:MUSICBRAINZ ALBUM RELEASE COUNTRY | RELEASECOUNTRY, DISCOGS_COUNTRY                  | RELEASECOUNTRY                      | MusicBrainz/Album Release Country | ICNT       |                            |      |
| script                     | 1 | [Release Script](https://picard.musicbrainz.org/docs/tags/)                                                                                                                                    |         |         | TXXX:SCRIPT                                                                       | TXXX:SCRIPT                                                                       | ----:COM.APPLE.ITUNES:SCRIPT                            | SCRIPT                                           | SCRIPT                              | WM/Script                         |            |                            |      |
| language                   | 1 | Language used in metadata                                                                                                                                                                      |         | TLA     | TLAN                                                                              | TLAN                                                                              | ----:COM.APPLE.ITUNES:LANGUAGE                          | LANGUAGE                                         | LANGUAGE                            | WM/Language                       |            |                            |      |
| copyright                  | 1 | Contain copyright message for the copyright holder of the original sound, begin with a year and a space character.                                                                             |         | TCR     | TCOP                                                                              | TCOP                                                                              | CPRT, ©CPY                                              | COPYRIGHT                                        | COPYRIGHT                           | Copyright                         |            |                            | (c)  |
| license                    | 1 | License Relationship Type (releases, recordings)                                                                                                                                               |         | WCP     | WCOP                                                                              | WCOP                                                                              | ----:COM.APPLE.ITUNES:LICENSE                           | LICENSE                                          | LICENSE                             | LICENSE                           |            |                            |      |
| encodedby                  | 1 | Encoded by (person/organisation)                                                                                                                                                               |         | TEN     | TENC                                                                              | TENC                                                                              | ©TOO                                                    | ENCODEDBY                                        | ENCODEDBY                           | WM/EncodedBy                      | ISFT, CODE | TRACK:ENCODER              |      |
| encodersettings            | 1 | Encoder Settings                                                                                                                                                                               |         | TSS     | TSSE                                                                              | TSSE                                                                              |                                                         | ENCODERSETTINGS                                  | ENCODERSETTINGS                     | WM/EncodingSettings               |            | TRACK:ENCODER_OPTIONS      |      |
| gapless                    | 1 | Gapless album indicator ([MP4](http://help.mp3tag.de/main_tags.html))                                                                                                                          |         |         |                                                                                   |                                                                                   | PGAP                                                    |                                                  |                                     |                                   |            |                            |      |
| barcode                    | 1 | [Release barcode](https://musicbrainz.org/doc/Barcode).                                                                                                                                        |         |         | TXXX:BARCODE                                                                      | TXXX:BARCODE                                                                      | ----:COM.APPLE.ITUNES:BARCODE                           | BARCODE                                          | BARCODE                             | WM/Barcode                        |            |                            |      |
| isrc                       | * | [ISRC](https://musicbrainz.org/doc/ISRC)                                                                                                                                                       |         |         | TXXX:ISRC, TSRC                                                                   | TXXX:ISRC, TSRC                                                                   | ----:COM.APPLE.ITUNES:ISRC                              | ISRC                                             | ISRC                                | WM/ISRC                           |            |                            |      |
| asin                       | 1 | [Amazon Standard Identification Number (ASIN)](https://musicbrainz.org/doc/ASIN)                                                                                                               |         |         | TXXX:ASIN                                                                         | TXXX:ASIN                                                                         | ----:COM.APPLE.ITUNES:ASIN                              | ASIN                                             | ASIN                                | ASIN                              |            |                            |      |
| musicbrainz_recordingid    | 1 | Release [recording](https://musicbrainz.org/doc/Recording) [MBID](https://musicbrainz.org/doc/MusicBrainz_Identifier)                                                                          |         |         | UFID:HTTP://MUSICBRAINZ.ORG                                                       | UFID:HTTP://MUSICBRAINZ.ORG                                                       | ----:COM.APPLE.ITUNES:MUSICBRAINZ TRACK ID              | MUSICBRAINZ_TRACKID                              | MUSICBRAINZ_TRACKID                 | MusicBrainz/Track Id              |            | TRACK:MUSICBRAINZ_TRACKID  |      |
| musicbrainz_trackid        | 1 | Release track [MBID](https://musicbrainz.org/doc/MusicBrainz_Identifier)                                                                                                                       |         |         | TXXX:MUSICBRAINZ RELEASE TRACK ID                                                 | TXXX:MUSICBRAINZ RELEASE TRACK ID                                                 | ----:COM.APPLE.ITUNES:MUSICBRAINZ RELEASE TRACK ID      | MUSICBRAINZ_RELEASETRACKID                       | MUSICBRAINZ_RELEASETRACKID          | MusicBrainz/Release Track Id      |            |                            |      |
| musicbrainz_albumid        | 1 | [Album (release)](https://musicbrainz.org/doc/Release) [MBID](https://musicbrainz.org/doc/MusicBrainz_Identifier)                                                                              |         |         | TXXX:MUSICBRAINZ ALBUM ID                                                         | TXXX:MUSICBRAINZ ALBUM ID                                                         | ----:COM.APPLE.ITUNES:MUSICBRAINZ ALBUM ID              | MUSICBRAINZ_ALBUMID                              | MUSICBRAINZ_ALBUMID                 | MusicBrainz/Album Id              |            | TRACK:MUSICBRAINZ_ALBUMID  |      |
| musicbrainz_artistid       | * | Track [artists](https://musicbrainz.org/doc/Artist) [MBID](https://musicbrainz.org/doc/MusicBrainz_Identifier)                                                                                 |         |         | TXXX:MUSICBRAINZ ARTIST ID                                                        | TXXX:MUSICBRAINZ ARTIST ID                                                        | ----:COM.APPLE.ITUNES:MUSICBRAINZ ARTIST ID             | MUSICBRAINZ_ARTISTID                             | MUSICBRAINZ_ARTISTID                | MusicBrainz/Artist Id             |            | TRACK:MUSICBRAINZ_ARTISTID |      |
| musicbrainz_albumartistid  | * | Album artists [artists](https://musicbrainz.org/doc/Artist) [MBID](https://musicbrainz.org/doc/MusicBrainz_Identifier)                                                                         |         |         | TXXX:MUSICBRAINZ ALBUM ARTIST ID                                                  | TXXX:MUSICBRAINZ ALBUM ARTIST ID                                                  | ----:COM.APPLE.ITUNES:MUSICBRAINZ ALBUM ARTIST ID       | MUSICBRAINZ_ALBUMARTISTID                        | MUSICBRAINZ_ALBUMARTISTID           | MusicBrainz/Album Artist Id       |            |                            |      |
| musicbrainz_releasegroupid | 1 | [Release group](https://musicbrainz.org/doc/Release_Group) [MBID](https://musicbrainz.org/doc/MusicBrainz_Identifier)                                                                          |         |         | TXXX:MUSICBRAINZ RELEASE GROUP ID                                                 | TXXX:MUSICBRAINZ RELEASE GROUP ID                                                 | ----:COM.APPLE.ITUNES:MUSICBRAINZ RELEASE GROUP ID      | MUSICBRAINZ_RELEASEGROUPID                       | MUSICBRAINZ_RELEASEGROUPID          | MusicBrainz/Release Group Id      |            |                            |      |
| musicbrainz_workid         | 1 | [Work](https://musicbrainz.org/doc/Work) [MBID](https://musicbrainz.org/doc/MusicBrainz_Identifier)                                                                                            |         |         | TXXX:MUSICBRAINZ WORK ID                                                          | TXXX:MUSICBRAINZ WORK ID                                                          | ----:COM.APPLE.ITUNES:MUSICBRAINZ WORK ID               | MUSICBRAINZ_WORKID                               | MUSICBRAINZ_WORKID                  | MusicBrainz/Work Id               |            |                            |      |
| musicbrainz_trmid          | 1 | [TRM (TRM Recognizes Music)]((https://musicbrainz.org/doc/Fingerprinting#TRM)) IDs were MusicBrainz’ first audio fingerprinting system.                                                        |         |         | TXXX:MUSICBRAINZ TRM ID                                                           | TXXX:MUSICBRAINZ TRM ID                                                           | ----:COM.APPLE.ITUNES:MUSICBRAINZ TRM ID                | MUSICBRAINZ_TRMID                                | MUSICBRAINZ_TRMID                   | MusicBrainz/TRM Id                |            |                            |      |
| musicbrainz_discid         | 1 | [Disc ID](https://musicbrainz.org/doc/Disc_ID) is the code number which MusicBrainz uses to link a physical CD                                                                                 |         |         | TXXX:MUSICBRAINZ DISC ID                                                          | TXXX:MUSICBRAINZ DISC ID                                                          | ----:COM.APPLE.ITUNES:MUSICBRAINZ DISC ID               | MUSICBRAINZ_DISCID                               | MUSICBRAINZ_DISCID                  | MusicBrainz/Disc Id               |            |                            |      |
| acoustid_id                | 1 | (AcoustID)[https://en.wikipedia.org/wiki/Acoustic_fingerprint] is MusicBrainz’ third and most recent audio fingerprinting system.                                                              |         |         | TXXX:ACOUSTID_ID, TXXX:ACOUSTID ID                                                | TXXX:ACOUSTID_ID, TXXX:ACOUSTID ID                                                | ----:COM.APPLE.ITUNES:ACOUSTID ID                       | ACOUSTID_ID                                      | ACOUSTID_ID                         | Acoustid/Id                       |            |                            |      |
| acoustid_fingerprint       | 1 | [AcoustID Fingerprint](https://picard.musicbrainz.org/docs/mappings/). _ToDo: Same as acoustid_id._                                                                                            |         |         | TXXX:ACOUSTID FINGERPRINT                                                         | TXXX:ACOUSTID FINGERPRINT                                                         | ----:COM.APPLE.ITUNES:ACOUSTID FINGERPRINT              | ACOUSTID_ID_FINGERPRINT                          | ACOUSTID_FINGERPRINT                | Acoustid/Fingerprint              |            |                            |      |
| musicip_puid               | 1 | [PUIDs](https://musicbrainz.org/doc/Fingerprinting#PUID) were MusicBrainz’ second audio fingerprinting system.                                                                                 |         |         | TXXX:MUSICIP PUID                                                                 | TXXX:MUSICIP PUID                                                                 | ----:COM.APPLE.ITUNES:MUSICIP PUID                      | MUSICIP_PUID                                     | MUSICIP_PUID                        | MusicIP/PUID                      |            |                            |      |
| musicip_fingerprint        | 1 | MusicIP Fingerprint), not sure which algorithm.                                                                                                                                                |         |         | TXXX:MUSICMAGIC FINGERPRINT                                                       | TXXX:MUSICMAGIC FINGERPRINT                                                       | ----:COM.APPLE.ITUNES:FINGERPRINT                       |                                                  |                                     |                                   |            |                            |      |
| website                    | 1 | URL of website                                                                                                                                                                                 |         | WAR     | WOAR                                                                              | WOAR                                                                              |                                                         | WEBSITE                                          | WEBLINK                             | WM/AuthorURL                      | TURL       |                            |      |
| performer:instrument       | * | Performer relationship types, instrument can also be vocals.                                                                                                                                   |         |         |                                                                                   |                                                                                   |                                                         |                                                  |                                     |                                   |            |                            |      |
| averageLevel               | 1 | Average gain level.                                                                                                                                                                            |         |         | PRIV:AVERAGELEVEL                                                                 | PRIV:AVERAGELEVEL                                                                 |                                                         |                                                  |                                     |                                   |            |                            |      |
| peakLevel                  | 1 | Peak gain level.                                                                                                                                                                               |         |         | PRIV:PEAKLEVEL                                                                    | PRIV:PEAKLEVEL                                                                    |                                                         |                                                  |                                     |                                   |            |                            |      |
| notes                      | * | Similar to comments                                                                                                                                                                            |         |         |                                                                                   |                                                                                   |                                                         | NOTES                                            |                                     |                                   |            |                            |      |
| key                        | 1 | The 'Initial key' frame contains the musical key in which the sound starts.                                                                                                                    |         |         | TKEY                                                                              | TKEY                                                                              |                                                         | KEY                                              |                                     | WM/InitialKey                     |            |                            |      |
| originalalbum              | 1 | Original release title of the earliest release in the release group intended for the title of the original recording.                                                                          |         | TOT     | TOAL                                                                              | TOAL                                                                              |                                                         |                                                  |                                     |                                   |            |                            |      |
| originalartist             | 1 | Original track artist of the earliest release in the release group intended for the performer(s) of the original recording.                                                                    |         |         | TOPE                                                                              | TOPE                                                                              |                                                         |                                                  |                                     |                                   |            |                            |      |
| discogs_artist_id          | * | Discogs artist ID                                                                                                                                                                              |         |         | TXXX:DISCOGS_ARTIST_ID                                                            | TXXX:DISCOGS_ARTIST_ID                                                            |                                                         | DISCOGS_ARTIST_ID                                |                                     |                                   |            |                            |      |
| discogs_release_id         | 1 | Discogs release identifier                                                                                                                                                                     |         |         | TXXX:DISCOGS_RELEASE_ID                                                           | TXXX:DISCOGS_RELEASE_ID                                                           |                                                         | DISCOGS_RELEASE_ID                               |                                     |                                   |            |                            |      |
| discogs_label_id           | 1 | Discogs label ID                                                                                                                                                                               |         |         | TXXX:DISCOGS_LABEL_ID                                                             | TXXX:DISCOGS_LABEL_ID                                                             |                                                         | DISCOGS_LABEL_ID                                 |                                     |                                   |            |                            |      |
| discogs_master_release_id  | 1 | Discogs master release ID                                                                                                                                                                      |         |         | TXXX:DISCOGS_MASTER_RELEASE_ID                                                    | TXXX:DISCOGS_MASTER_RELEASE_ID                                                    |                                                         | DISCOGS_MASTER_RELEASE_ID                        |                                     |                                   |            |                            |      |
| discogs_votes              | 1 | Discogs votes                                                                                                                                                                                  |         |         | TXXX:DISCOGS_VOTES                                                                | TXXX:DISCOGS_VOTES                                                                |                                                         | DISCOGS_VOTES                                    |                                     |                                   |            |                            |      |
| discogs_rating             | 1 | Discogs rating                                                                                                                                                                                 |         |         | TXXX:DISCOGS_RATING                                                               | TXXX:DISCOGS_RATING                                                               |                                                         | DISCOGS_RATING                                   |                                     |                                   |            |                            |      |
| replaygain_track_peak      | 1 | ReplayGain track peak: {ratio: number, dB: number}                                                                                                                                             |         |         | TXXX:REPLAYGAIN_TRACK_PEAK                                                        | TXXX:REPLAYGAIN_TRACK_PEAK                                                        | ----:COM.APPLE.ITUNES:REPLAYGAIN_TRACK_PEAK             | REPLAYGAIN_TRACK_PEAK                            | REPLAYGAIN_TRACK_PEAK               |                                   |            |                            |      |
| replaygain_track_gain      | 1 | ReplayGain track gain: {ratio: number, dB: number}                                                                                                                                             |         |         | TXXX:REPLAYGAIN_TRACK_GAIN                                                        | TXXX:REPLAYGAIN_TRACK_GAIN                                                        | ----:COM.APPLE.ITUNES:REPLAYGAIN_TRACK_GAIN             | REPLAYGAIN_TRACK_GAIN                            | REPLAYGAIN_TRACK_GAIN               |                                   |            |                            |      |
| replaygain_album_peak      | 1 | ReplayGain album peak: {ratio: number, dB: number}                                                                                                                                             |         |         | TXXX:REPLAYGAIN_ALBUM_PEAK                                                        | TXXX:REPLAYGAIN_ALBUM_PEAK                                                        | ----:COM.APPLE.ITUNES:REPLAYGAIN_ALBUM_PEAK             | REPLAYGAIN_ALBUM_PEAK                            |                                     |                                   |            |                            |      |
| replaygain_album_gain      | 1 | ReplayGain album gain: {ratio: number, dB: number}                                                                                                                                             |         |         | TXXX:REPLAYGAIN_ALBUM_GAIN                                                        | TXXX:REPLAYGAIN_ALBUM_GAIN                                                        | ----:COM.APPLE.ITUNES:REPLAYGAIN_ALBUM_GAIN             | REPLAYGAIN_ALBUM_GAIN                            |                                     |                                   |            |                            |      |
| replaygain_track_minmax    | 1 | Minimum & maximum global gain values for this file.                                                                                                                                            |         |         | TXXX:MP3GAIN_MINMAX                                                               | TXXX:MP3GAIN_MINMAX                                                               | ----:COM.APPLE.ITUNES:REPLAYGAIN_TRACK_MINMAX           | REPLAYGAIN_MINMAX                                | MP3GAIN_MINMAX                      |                                   |            |                            |      |
| replaygain_album_minmax    | 1 | Minimum & maximum global gain values across a set of files scanned as an album.                                                                                                                |         |         | TXXX:MP3GAIN_ALBUM_MINMAX                                                         | TXXX:MP3GAIN_ALBUM_MINMAX                                                         | ----:COM.APPLE.ITUNES:REPLAYGAIN_ALBUM_MINMAX           | REPLAYGAIN_ALBUM_MINMAX                          |                                     |                                   |            |                            |      |
| replaygain_undo            | 1 | The global gain adjustment to restore the original values in the left and right channels, respectively, followed by an indicator of whether to wrap                                            |         |         | TXXX:MP3GAIN_UNDO                                                                 | TXXX:MP3GAIN_UNDO                                                                 | ----:COM.APPLE.ITUNES:REPLAYGAIN_UNDO                   | REPLAYGAIN_UNDO                                  | MP3GAIN_UNDO                        |                                   |            |                            |      |
| description                | * | Description                                                                                                                                                                                    |         |         | TDES                                                                              | TDES                                                                              | DESC                                                    |                                                  |                                     |                                   |            |                            |      |
| longDescription            | 1 | Long description or synopsis                                                                                                                                                                   |         |         |                                                                                   |                                                                                   | LDES                                                    |                                                  |                                     |                                   |            |                            |      |
| category                   | * | Podcast Category                                                                                                                                                                               |         |         | TCAT                                                                              | TCAT                                                                              | CATG                                                    |                                                  |                                     |                                   |            |                            |      |
| hdVideo                    | 1 | iTunes Video Quality (2=Full HD, 1=HD, 0=SD)                                                                                                                                                   |         |         |                                                                                   |                                                                                   | HDVD                                                    |                                                  |                                     |                                   |            |                            |      |
| keywords                   | * | Podcast Keywords                                                                                                                                                                               |         |         | TKWD                                                                              | TKWD                                                                              | KEYW                                                    |                                                  |                                     |                                   |            |                            |      |
| movement                   | 1 | Movement                                                                                                                                                                                       |         |         | MVNM                                                                              | MVNM                                                                              | ©MVN                                                    |                                                  |                                     |                                   |            |                            |      |
| movementIndex              | 1 | Movement Index/Total, e.g. `{no: 1, of: 4}`                                                                                                                                                    |         |         | MVIN                                                                              | MVIN                                                                              | ©MVI                                                    |                                                  |                                     |                                   |            |                            |      |
| movementTotal              | 1 | The total number of movements                                                                                                                                                                  |         |         |                                                                                   |                                                                                   | ©MVC                                                    |                                                  |                                     |                                   |            |                            |      |
| podcastId                  | 1 | Podcast Identifier                                                                                                                                                                             |         |         | TGID                                                                              | TGID                                                                              | EGID                                                    |                                                  |                                     |                                   |            |                            |      |
| showMovement               | 1 | Show Movement                                                                                                                                                                                  |         |         |                                                                                   |                                                                                   | SHWM                                                    |                                                  |                                     |                                   |            |                            |      |
| stik                       | 1 | iTunes Media Type (1=Normal, 2=Audiobook, 6=Music Video, 9=Movie, 10=TV Show, 11=Booklet, 14=Ringtone, https://github.com/sergiomb2/libmp4v2/wiki/iTunesMetadata#user-content-media-type-stik) |         |         |                                                                                   |                                                                                   | STIK                                                    |                                                  |                                     |                                   |            |                            |      |
