---
title: AVMetadataKey
framework: avfoundation
role: symbol
role_heading: Structure
path: avfoundation/avmetadatakey
---

# AVMetadataKey

A structure that defines a metadata key.

## Declaration

```swift
struct AVMetadataKey
```

## Topics

### Common metadata keys

- [commonKeyAccessibilityDescription](avfoundation/avmetadatakey/commonkeyaccessibilitydescription.md)
- [commonKeyAlbumName](avfoundation/avmetadatakey/commonkeyalbumname.md)
- [commonKeyArtist](avfoundation/avmetadatakey/commonkeyartist.md)
- [commonKeyArtwork](avfoundation/avmetadatakey/commonkeyartwork.md)
- [commonKeyAuthor](avfoundation/avmetadatakey/commonkeyauthor.md)
- [commonKeyContributor](avfoundation/avmetadatakey/commonkeycontributor.md)
- [commonKeyCopyrights](avfoundation/avmetadatakey/commonkeycopyrights.md)
- [commonKeyCreationDate](avfoundation/avmetadatakey/commonkeycreationdate.md)
- [commonKeyCreator](avfoundation/avmetadatakey/commonkeycreator.md)
- [commonKeyDescription](avfoundation/avmetadatakey/commonkeydescription.md)
- [commonKeyFormat](avfoundation/avmetadatakey/commonkeyformat.md)
- [commonKeyIdentifier](avfoundation/avmetadatakey/commonkeyidentifier.md)
- [commonKeyLanguage](avfoundation/avmetadatakey/commonkeylanguage.md)
- [commonKeyLastModifiedDate](avfoundation/avmetadatakey/commonkeylastmodifieddate.md)
- [commonKeyLocation](avfoundation/avmetadatakey/commonkeylocation.md)
- [commonKeyMake](avfoundation/avmetadatakey/commonkeymake.md)
- [commonKeyModel](avfoundation/avmetadatakey/commonkeymodel.md)
- [commonKeyPublisher](avfoundation/avmetadatakey/commonkeypublisher.md)
- [commonKeyRelation](avfoundation/avmetadatakey/commonkeyrelation.md)
- [commonKeySoftware](avfoundation/avmetadatakey/commonkeysoftware.md)
- [commonKeySource](avfoundation/avmetadatakey/commonkeysource.md)
- [commonKeySubject](avfoundation/avmetadatakey/commonkeysubject.md)
- [commonKeyTitle](avfoundation/avmetadatakey/commonkeytitle.md)
- [commonKeyType](avfoundation/avmetadatakey/commonkeytype.md)

### iTunes metadata keys

- [iTunesMetadataKeyAccountKind](avfoundation/avmetadatakey/itunesmetadatakeyaccountkind.md)
- [iTunesMetadataKeyAcknowledgement](avfoundation/avmetadatakey/itunesmetadatakeyacknowledgement.md)
- [iTunesMetadataKeyAlbum](avfoundation/avmetadatakey/itunesmetadatakeyalbum.md)
- [iTunesMetadataKeyAlbumArtist](avfoundation/avmetadatakey/itunesmetadatakeyalbumartist.md)
- [iTunesMetadataKeyAppleID](avfoundation/avmetadatakey/itunesmetadatakeyappleid.md)
- [iTunesMetadataKeyArranger](avfoundation/avmetadatakey/itunesmetadatakeyarranger.md)
- [iTunesMetadataKeyArtDirector](avfoundation/avmetadatakey/itunesmetadatakeyartdirector.md)
- [iTunesMetadataKeyArtist](avfoundation/avmetadatakey/itunesmetadatakeyartist.md)
- [iTunesMetadataKeyArtistID](avfoundation/avmetadatakey/itunesmetadatakeyartistid.md)
- [iTunesMetadataKeyAuthor](avfoundation/avmetadatakey/itunesmetadatakeyauthor.md)
- [iTunesMetadataKeyBeatsPerMin](avfoundation/avmetadatakey/itunesmetadatakeybeatspermin.md)
- [iTunesMetadataKeyComposer](avfoundation/avmetadatakey/itunesmetadatakeycomposer.md)
- [iTunesMetadataKeyConductor](avfoundation/avmetadatakey/itunesmetadatakeyconductor.md)
- [iTunesMetadataKeyContentRating](avfoundation/avmetadatakey/itunesmetadatakeycontentrating.md)
- [iTunesMetadataKeyCopyright](avfoundation/avmetadatakey/itunesmetadatakeycopyright.md)
- [iTunesMetadataKeyCoverArt](avfoundation/avmetadatakey/itunesmetadatakeycoverart.md)
- [iTunesMetadataKeyCredits](avfoundation/avmetadatakey/itunesmetadatakeycredits.md)
- [iTunesMetadataKeyDescription](avfoundation/avmetadatakey/itunesmetadatakeydescription.md)
- [iTunesMetadataKeyDirector](avfoundation/avmetadatakey/itunesmetadatakeydirector.md)
- [iTunesMetadataKeyDiscCompilation](avfoundation/avmetadatakey/itunesmetadatakeydisccompilation.md)
- [iTunesMetadataKeyDiscNumber](avfoundation/avmetadatakey/itunesmetadatakeydiscnumber.md)
- [iTunesMetadataKeyEncodedBy](avfoundation/avmetadatakey/itunesmetadatakeyencodedby.md)
- [iTunesMetadataKeyEncodingTool](avfoundation/avmetadatakey/itunesmetadatakeyencodingtool.md)
- [iTunesMetadataKeyEQ](avfoundation/avmetadatakey/itunesmetadatakeyeq.md)
- [iTunesMetadataKeyExecProducer](avfoundation/avmetadatakey/itunesmetadatakeyexecproducer.md)
- [iTunesMetadataKeyGenreID](avfoundation/avmetadatakey/itunesmetadatakeygenreid.md)
- [iTunesMetadataKeyGrouping](avfoundation/avmetadatakey/itunesmetadatakeygrouping.md)
- [iTunesMetadataKeyLinerNotes](avfoundation/avmetadatakey/itunesmetadatakeylinernotes.md)
- [iTunesMetadataKeyLyrics](avfoundation/avmetadatakey/itunesmetadatakeylyrics.md)
- [iTunesMetadataKeyOnlineExtras](avfoundation/avmetadatakey/itunesmetadatakeyonlineextras.md)
- [iTunesMetadataKeyOriginalArtist](avfoundation/avmetadatakey/itunesmetadatakeyoriginalartist.md)
- [iTunesMetadataKeyPerformer](avfoundation/avmetadatakey/itunesmetadatakeyperformer.md)
- [iTunesMetadataKeyPhonogramRights](avfoundation/avmetadatakey/itunesmetadatakeyphonogramrights.md)
- [iTunesMetadataKeyPlaylistID](avfoundation/avmetadatakey/itunesmetadatakeyplaylistid.md)
- [iTunesMetadataKeyPredefinedGenre](avfoundation/avmetadatakey/itunesmetadatakeypredefinedgenre.md)
- [iTunesMetadataKeyProducer](avfoundation/avmetadatakey/itunesmetadatakeyproducer.md)
- [iTunesMetadataKeyPublisher](avfoundation/avmetadatakey/itunesmetadatakeypublisher.md)
- [iTunesMetadataKeyRecordCompany](avfoundation/avmetadatakey/itunesmetadatakeyrecordcompany.md)
- [iTunesMetadataKeyReleaseDate](avfoundation/avmetadatakey/itunesmetadatakeyreleasedate.md)
- [iTunesMetadataKeySoloist](avfoundation/avmetadatakey/itunesmetadatakeysoloist.md)
- [iTunesMetadataKeySongID](avfoundation/avmetadatakey/itunesmetadatakeysongid.md)
- [iTunesMetadataKeySongName](avfoundation/avmetadatakey/itunesmetadatakeysongname.md)
- [iTunesMetadataKeySoundEngineer](avfoundation/avmetadatakey/itunesmetadatakeysoundengineer.md)
- [iTunesMetadataKeyThanks](avfoundation/avmetadatakey/itunesmetadatakeythanks.md)
- [iTunesMetadataKeyTrackNumber](avfoundation/avmetadatakey/itunesmetadatakeytracknumber.md)
- [iTunesMetadataKeyTrackSubTitle](avfoundation/avmetadatakey/itunesmetadatakeytracksubtitle.md)
- [iTunesMetadataKeyUserComment](avfoundation/avmetadatakey/itunesmetadatakeyusercomment.md)
- [iTunesMetadataKeyUserGenre](avfoundation/avmetadatakey/itunesmetadatakeyusergenre.md)

### QuickTime metadata keys

- [quickTimeMetadataKeyAccessibilityDescription](avfoundation/avmetadatakey/quicktimemetadatakeyaccessibilitydescription.md)
- [quickTimeMetadataKeyAlbum](avfoundation/avmetadatakey/quicktimemetadatakeyalbum.md)
- [quickTimeMetadataKeyArranger](avfoundation/avmetadatakey/quicktimemetadatakeyarranger.md)
- [quickTimeMetadataKeyArtist](avfoundation/avmetadatakey/quicktimemetadatakeyartist.md)
- [quickTimeMetadataKeyArtwork](avfoundation/avmetadatakey/quicktimemetadatakeyartwork.md)
- [quickTimeMetadataKeyAuthor](avfoundation/avmetadatakey/quicktimemetadatakeyauthor.md)
- [quickTimeMetadataKeyCameraFocalLength35mmEquivalent](avfoundation/avmetadatakey/quicktimemetadatakeycamerafocallength35mmequivalent.md)
- [quickTimeMetadataKeyCameraFrameReadoutTime](avfoundation/avmetadatakey/quicktimemetadatakeycameraframereadouttime.md)
- [quickTimeMetadataKeyCameraISOSensitivity](avfoundation/avmetadatakey/quicktimemetadatakeycameraisosensitivity.md)
- [quickTimeMetadataKeyCameraIdentifier](avfoundation/avmetadatakey/quicktimemetadatakeycameraidentifier.md)
- [quickTimeMetadataKeyCameraLensIrisFNumber](avfoundation/avmetadatakey/quicktimemetadatakeycameralensirisfnumber.md)
- [quickTimeMetadataKeyCameraLensModel](avfoundation/avmetadatakey/quicktimemetadatakeycameralensmodel.md)
- [quickTimeMetadataKeyCameraShutterSpeedAngle](avfoundation/avmetadatakey/quicktimemetadatakeycamerashutterspeedangle.md)
- [quickTimeMetadataKeyCameraShutterSpeedTime](avfoundation/avmetadatakey/quicktimemetadatakeycamerashutterspeedtime.md)
- [quickTimeMetadataKeyCameraWhiteBalance](avfoundation/avmetadatakey/quicktimemetadatakeycamerawhitebalance.md)
- [quickTimeMetadataKeyCinematicVideoIntent](avfoundation/avmetadatakey/quicktimemetadatakeycinematicvideointent.md)
- [quickTimeMetadataKeyCollectionUser](avfoundation/avmetadatakey/quicktimemetadatakeycollectionuser.md)
- [quickTimeMetadataKeyComment](avfoundation/avmetadatakey/quicktimemetadatakeycomment.md)
- [quickTimeMetadataKeyComposer](avfoundation/avmetadatakey/quicktimemetadatakeycomposer.md)
- [quickTimeMetadataKeyContentIdentifier](avfoundation/avmetadatakey/quicktimemetadatakeycontentidentifier.md)
- [quickTimeMetadataKeyCopyright](avfoundation/avmetadatakey/quicktimemetadatakeycopyright.md)
- [quickTimeMetadataKeyCreationDate](avfoundation/avmetadatakey/quicktimemetadatakeycreationdate.md)
- [quickTimeMetadataKeyCredits](avfoundation/avmetadatakey/quicktimemetadatakeycredits.md)
- [quickTimeMetadataKeyDescription](avfoundation/avmetadatakey/quicktimemetadatakeydescription.md)
- [quickTimeMetadataKeyDirectionFacing](avfoundation/avmetadatakey/quicktimemetadatakeydirectionfacing.md)
- [quickTimeMetadataKeyDirectionMotion](avfoundation/avmetadatakey/quicktimemetadatakeydirectionmotion.md)
- [quickTimeMetadataKeyDirector](avfoundation/avmetadatakey/quicktimemetadatakeydirector.md)
- [quickTimeMetadataKeyDisplayName](avfoundation/avmetadatakey/quicktimemetadatakeydisplayname.md)
- [quickTimeMetadataKeyEncodedBy](avfoundation/avmetadatakey/quicktimemetadatakeyencodedby.md)
- [quickTimeMetadataKeyFullFrameRatePlaybackIntent](avfoundation/avmetadatakey/quicktimemetadatakeyfullframerateplaybackintent.md)
- [quickTimeMetadataKeyGenre](avfoundation/avmetadatakey/quicktimemetadatakeygenre.md)
- [quickTimeMetadataKeyInformation](avfoundation/avmetadatakey/quicktimemetadatakeyinformation.md)
- [quickTimeMetadataKeyIsMontage](avfoundation/avmetadatakey/quicktimemetadatakeyismontage.md)
- [quickTimeMetadataKeyKeywords](avfoundation/avmetadatakey/quicktimemetadatakeykeywords.md)
- [quickTimeMetadataKeyLocationBody](avfoundation/avmetadatakey/quicktimemetadatakeylocationbody.md)
- [quickTimeMetadataKeyLocationDate](avfoundation/avmetadatakey/quicktimemetadatakeylocationdate.md)
- [quickTimeMetadataKeyLocationISO6709](avfoundation/avmetadatakey/quicktimemetadatakeylocationiso6709.md)
- [quickTimeMetadataKeyLocationName](avfoundation/avmetadatakey/quicktimemetadatakeylocationname.md)
- [quickTimeMetadataKeyLocationNote](avfoundation/avmetadatakey/quicktimemetadatakeylocationnote.md)
- [quickTimeMetadataKeyLocationRole](avfoundation/avmetadatakey/quicktimemetadatakeylocationrole.md)
- [quickTimeMetadataKeyMake](avfoundation/avmetadatakey/quicktimemetadatakeymake.md)
- [quickTimeMetadataKeyModel](avfoundation/avmetadatakey/quicktimemetadatakeymodel.md)
- [quickTimeMetadataKeyOriginalArtist](avfoundation/avmetadatakey/quicktimemetadatakeyoriginalartist.md)
- [quickTimeMetadataKeyPerformer](avfoundation/avmetadatakey/quicktimemetadatakeyperformer.md)
- [quickTimeMetadataKeyPhonogramRights](avfoundation/avmetadatakey/quicktimemetadatakeyphonogramrights.md)
- [quickTimeMetadataKeyProducer](avfoundation/avmetadatakey/quicktimemetadatakeyproducer.md)
- [quickTimeMetadataKeyPublisher](avfoundation/avmetadatakey/quicktimemetadatakeypublisher.md)
- [quickTimeMetadataKeyRatingUser](avfoundation/avmetadatakey/quicktimemetadatakeyratinguser.md)
- [quickTimeMetadataKeySoftware](avfoundation/avmetadatakey/quicktimemetadatakeysoftware.md)
- [quickTimeMetadataKeyTitle](avfoundation/avmetadatakey/quicktimemetadatakeytitle.md)
- [quickTimeMetadataKeyWhiteBalanceByCCTColorMatrices](avfoundation/avmetadatakey/quicktimemetadatakeywhitebalancebycctcolormatrices.md)
- [quickTimeMetadataKeyWhiteBalanceByCCTWhiteBalanceFactors](avfoundation/avmetadatakey/quicktimemetadatakeywhitebalancebycctwhitebalancefactors.md)
- [quickTimeMetadataKeyYear](avfoundation/avmetadatakey/quicktimemetadatakeyyear.md)
- [quickTimeMetadataKeyiXML](avfoundation/avmetadatakey/quicktimemetadatakeyixml.md)

### QuickTime user metadata keys

- [quickTimeUserDataKeyAccessibilityDescription](avfoundation/avmetadatakey/quicktimeuserdatakeyaccessibilitydescription.md)
- [quickTimeUserDataKeyAlbum](avfoundation/avmetadatakey/quicktimeuserdatakeyalbum.md)
- [quickTimeUserDataKeyArranger](avfoundation/avmetadatakey/quicktimeuserdatakeyarranger.md)
- [quickTimeUserDataKeyArtist](avfoundation/avmetadatakey/quicktimeuserdatakeyartist.md)
- [quickTimeUserDataKeyAuthor](avfoundation/avmetadatakey/quicktimeuserdatakeyauthor.md)
- [quickTimeUserDataKeyChapter](avfoundation/avmetadatakey/quicktimeuserdatakeychapter.md)
- [quickTimeUserDataKeyComment](avfoundation/avmetadatakey/quicktimeuserdatakeycomment.md)
- [quickTimeUserDataKeyComposer](avfoundation/avmetadatakey/quicktimeuserdatakeycomposer.md)
- [quickTimeUserDataKeyCopyright](avfoundation/avmetadatakey/quicktimeuserdatakeycopyright.md)
- [quickTimeUserDataKeyCreationDate](avfoundation/avmetadatakey/quicktimeuserdatakeycreationdate.md)
- [quickTimeUserDataKeyCredits](avfoundation/avmetadatakey/quicktimeuserdatakeycredits.md)
- [quickTimeUserDataKeyDescription](avfoundation/avmetadatakey/quicktimeuserdatakeydescription.md)
- [quickTimeUserDataKeyDirector](avfoundation/avmetadatakey/quicktimeuserdatakeydirector.md)
- [quickTimeUserDataKeyDisclaimer](avfoundation/avmetadatakey/quicktimeuserdatakeydisclaimer.md)
- [quickTimeUserDataKeyEncodedBy](avfoundation/avmetadatakey/quicktimeuserdatakeyencodedby.md)
- [quickTimeUserDataKeyFullName](avfoundation/avmetadatakey/quicktimeuserdatakeyfullname.md)
- [quickTimeUserDataKeyGenre](avfoundation/avmetadatakey/quicktimeuserdatakeygenre.md)
- [quickTimeUserDataKeyHostComputer](avfoundation/avmetadatakey/quicktimeuserdatakeyhostcomputer.md)
- [quickTimeUserDataKeyInformation](avfoundation/avmetadatakey/quicktimeuserdatakeyinformation.md)
- [quickTimeUserDataKeyKeywords](avfoundation/avmetadatakey/quicktimeuserdatakeykeywords.md)
- [quickTimeUserDataKeyLocationISO6709](avfoundation/avmetadatakey/quicktimeuserdatakeylocationiso6709.md)
- [quickTimeUserDataKeyMake](avfoundation/avmetadatakey/quicktimeuserdatakeymake.md)
- [quickTimeUserDataKeyModel](avfoundation/avmetadatakey/quicktimeuserdatakeymodel.md)
- [quickTimeUserDataKeyOriginalArtist](avfoundation/avmetadatakey/quicktimeuserdatakeyoriginalartist.md)
- [quickTimeUserDataKeyOriginalFormat](avfoundation/avmetadatakey/quicktimeuserdatakeyoriginalformat.md)
- [quickTimeUserDataKeyOriginalSource](avfoundation/avmetadatakey/quicktimeuserdatakeyoriginalsource.md)
- [quickTimeUserDataKeyPerformers](avfoundation/avmetadatakey/quicktimeuserdatakeyperformers.md)
- [quickTimeUserDataKeyPhonogramRights](avfoundation/avmetadatakey/quicktimeuserdatakeyphonogramrights.md)
- [quickTimeUserDataKeyProducer](avfoundation/avmetadatakey/quicktimeuserdatakeyproducer.md)
- [quickTimeUserDataKeyProduct](avfoundation/avmetadatakey/quicktimeuserdatakeyproduct.md)
- [quickTimeUserDataKeyPublisher](avfoundation/avmetadatakey/quicktimeuserdatakeypublisher.md)
- [quickTimeUserDataKeySoftware](avfoundation/avmetadatakey/quicktimeuserdatakeysoftware.md)
- [quickTimeUserDataKeySpecialPlaybackRequirements](avfoundation/avmetadatakey/quicktimeuserdatakeyspecialplaybackrequirements.md)
- [quickTimeUserDataKeyTaggedCharacteristic](avfoundation/avmetadatakey/quicktimeuserdatakeytaggedcharacteristic.md)
- [quickTimeUserDataKeyTrack](avfoundation/avmetadatakey/quicktimeuserdatakeytrack.md)
- [quickTimeUserDataKeyTrackName](avfoundation/avmetadatakey/quicktimeuserdatakeytrackname.md)
- [quickTimeUserDataKeyURLLink](avfoundation/avmetadatakey/quicktimeuserdatakeyurllink.md)
- [quickTimeUserDataKeyWarning](avfoundation/avmetadatakey/quicktimeuserdatakeywarning.md)
- [quickTimeUserDataKeyWriter](avfoundation/avmetadatakey/quicktimeuserdatakeywriter.md)

### ID3 metadata keys

- [id3MetadataKeyAlbumSortOrder](avfoundation/avmetadatakey/id3metadatakeyalbumsortorder.md)
- [id3MetadataKeyAlbumTitle](avfoundation/avmetadatakey/id3metadatakeyalbumtitle.md)
- [id3MetadataKeyAttachedPicture](avfoundation/avmetadatakey/id3metadatakeyattachedpicture.md)
- [id3MetadataKeyAudioEncryption](avfoundation/avmetadatakey/id3metadatakeyaudioencryption.md)
- [id3MetadataKeyAudioSeekPointIndex](avfoundation/avmetadatakey/id3metadatakeyaudioseekpointindex.md)
- [id3MetadataKeyBand](avfoundation/avmetadatakey/id3metadatakeyband.md)
- [id3MetadataKeyBeatsPerMinute](avfoundation/avmetadatakey/id3metadatakeybeatsperminute.md)
- [id3MetadataKeyComments](avfoundation/avmetadatakey/id3metadatakeycomments.md)
- [id3MetadataKeyCommercial](avfoundation/avmetadatakey/id3metadatakeycommercial.md)
- [id3MetadataKeyCommercialInformation](avfoundation/avmetadatakey/id3metadatakeycommercialinformation.md)
- [id3MetadataKeyComposer](avfoundation/avmetadatakey/id3metadatakeycomposer.md)
- [id3MetadataKeyConductor](avfoundation/avmetadatakey/id3metadatakeyconductor.md)
- [id3MetadataKeyContentGroupDescription](avfoundation/avmetadatakey/id3metadatakeycontentgroupdescription.md)
- [id3MetadataKeyContentType](avfoundation/avmetadatakey/id3metadatakeycontenttype.md)
- [id3MetadataKeyCopyright](avfoundation/avmetadatakey/id3metadatakeycopyright.md)
- [id3MetadataKeyCopyrightInformation](avfoundation/avmetadatakey/id3metadatakeycopyrightinformation.md)
- [id3MetadataKeyDate](avfoundation/avmetadatakey/id3metadatakeydate.md)
- [id3MetadataKeyEncodedBy](avfoundation/avmetadatakey/id3metadatakeyencodedby.md)
- [id3MetadataKeyEncodedWith](avfoundation/avmetadatakey/id3metadatakeyencodedwith.md)
- [id3MetadataKeyEncodingTime](avfoundation/avmetadatakey/id3metadatakeyencodingtime.md)
- [id3MetadataKeyEncryption](avfoundation/avmetadatakey/id3metadatakeyencryption.md)
- [id3MetadataKeyEqualization](avfoundation/avmetadatakey/id3metadatakeyequalization.md)
- [id3MetadataKeyEqualization2](avfoundation/avmetadatakey/id3metadatakeyequalization2.md)
- [id3MetadataKeyEventTimingCodes](avfoundation/avmetadatakey/id3metadatakeyeventtimingcodes.md)
- [id3MetadataKeyFileOwner](avfoundation/avmetadatakey/id3metadatakeyfileowner.md)
- [id3MetadataKeyFileType](avfoundation/avmetadatakey/id3metadatakeyfiletype.md)
- [id3MetadataKeyGeneralEncapsulatedObject](avfoundation/avmetadatakey/id3metadatakeygeneralencapsulatedobject.md)
- [id3MetadataKeyGroupIdentifier](avfoundation/avmetadatakey/id3metadatakeygroupidentifier.md)
- [id3MetadataKeyInitialKey](avfoundation/avmetadatakey/id3metadatakeyinitialkey.md)
- [id3MetadataKeyInternationalStandardRecordingCode](avfoundation/avmetadatakey/id3metadatakeyinternationalstandardrecordingcode.md)
- [id3MetadataKeyInternetRadioStationName](avfoundation/avmetadatakey/id3metadatakeyinternetradiostationname.md)
- [id3MetadataKeyInternetRadioStationOwner](avfoundation/avmetadatakey/id3metadatakeyinternetradiostationowner.md)
- [id3MetadataKeyInvolvedPeopleList_v23](avfoundation/avmetadatakey/id3metadatakeyinvolvedpeoplelist_v23.md)
- [id3MetadataKeyInvolvedPeopleList_v24](avfoundation/avmetadatakey/id3metadatakeyinvolvedpeoplelist_v24.md)
- [id3MetadataKeyLanguage](avfoundation/avmetadatakey/id3metadatakeylanguage.md)
- [id3MetadataKeyLeadPerformer](avfoundation/avmetadatakey/id3metadatakeyleadperformer.md)
- [id3MetadataKeyLength](avfoundation/avmetadatakey/id3metadatakeylength.md)
- [id3MetadataKeyLink](avfoundation/avmetadatakey/id3metadatakeylink.md)
- [id3MetadataKeyLyricist](avfoundation/avmetadatakey/id3metadatakeylyricist.md)
- [id3MetadataKeyMediaType](avfoundation/avmetadatakey/id3metadatakeymediatype.md)
- [id3MetadataKeyModifiedBy](avfoundation/avmetadatakey/id3metadatakeymodifiedby.md)
- [id3MetadataKeyMood](avfoundation/avmetadatakey/id3metadatakeymood.md)
- [id3MetadataKeyMPEGLocationLookupTable](avfoundation/avmetadatakey/id3metadatakeympeglocationlookuptable.md)
- [id3MetadataKeyMusicCDIdentifier](avfoundation/avmetadatakey/id3metadatakeymusiccdidentifier.md)
- [id3MetadataKeyMusicianCreditsList](avfoundation/avmetadatakey/id3metadatakeymusiciancreditslist.md)
- [id3MetadataKeyOfficialArtistWebpage](avfoundation/avmetadatakey/id3metadatakeyofficialartistwebpage.md)
- [id3MetadataKeyOfficialAudioFileWebpage](avfoundation/avmetadatakey/id3metadatakeyofficialaudiofilewebpage.md)
- [id3MetadataKeyOfficialAudioSourceWebpage](avfoundation/avmetadatakey/id3metadatakeyofficialaudiosourcewebpage.md)
- [id3MetadataKeyOfficialInternetRadioStationHomepage](avfoundation/avmetadatakey/id3metadatakeyofficialinternetradiostationhomepage.md)
- [id3MetadataKeyOfficialPublisherWebpage](avfoundation/avmetadatakey/id3metadatakeyofficialpublisherwebpage.md)
- [id3MetadataKeyOriginalAlbumTitle](avfoundation/avmetadatakey/id3metadatakeyoriginalalbumtitle.md)
- [id3MetadataKeyOriginalArtist](avfoundation/avmetadatakey/id3metadatakeyoriginalartist.md)
- [id3MetadataKeyOriginalFilename](avfoundation/avmetadatakey/id3metadatakeyoriginalfilename.md)
- [id3MetadataKeyOriginalLyricist](avfoundation/avmetadatakey/id3metadatakeyoriginallyricist.md)
- [id3MetadataKeyOriginalReleaseTime](avfoundation/avmetadatakey/id3metadatakeyoriginalreleasetime.md)
- [id3MetadataKeyOriginalReleaseYear](avfoundation/avmetadatakey/id3metadatakeyoriginalreleaseyear.md)
- [id3MetadataKeyOwnership](avfoundation/avmetadatakey/id3metadatakeyownership.md)
- [id3MetadataKeyPartOfASet](avfoundation/avmetadatakey/id3metadatakeypartofaset.md)
- [id3MetadataKeyPayment](avfoundation/avmetadatakey/id3metadatakeypayment.md)
- [id3MetadataKeyPerformerSortOrder](avfoundation/avmetadatakey/id3metadatakeyperformersortorder.md)
- [id3MetadataKeyPlayCounter](avfoundation/avmetadatakey/id3metadatakeyplaycounter.md)
- [id3MetadataKeyPlaylistDelay](avfoundation/avmetadatakey/id3metadatakeyplaylistdelay.md)
- [id3MetadataKeyPopularimeter](avfoundation/avmetadatakey/id3metadatakeypopularimeter.md)
- [id3MetadataKeyPositionSynchronization](avfoundation/avmetadatakey/id3metadatakeypositionsynchronization.md)
- [id3MetadataKeyPrivate](avfoundation/avmetadatakey/id3metadatakeyprivate.md)
- [id3MetadataKeyProducedNotice](avfoundation/avmetadatakey/id3metadatakeyproducednotice.md)
- [id3MetadataKeyPublisher](avfoundation/avmetadatakey/id3metadatakeypublisher.md)
- [id3MetadataKeyRecommendedBufferSize](avfoundation/avmetadatakey/id3metadatakeyrecommendedbuffersize.md)
- [id3MetadataKeyRecordingDates](avfoundation/avmetadatakey/id3metadatakeyrecordingdates.md)
- [id3MetadataKeyRecordingTime](avfoundation/avmetadatakey/id3metadatakeyrecordingtime.md)
- [id3MetadataKeyRelativeVolumeAdjustment](avfoundation/avmetadatakey/id3metadatakeyrelativevolumeadjustment.md)
- [id3MetadataKeyRelativeVolumeAdjustment2](avfoundation/avmetadatakey/id3metadatakeyrelativevolumeadjustment2.md)
- [id3MetadataKeyReleaseTime](avfoundation/avmetadatakey/id3metadatakeyreleasetime.md)
- [id3MetadataKeyReverb](avfoundation/avmetadatakey/id3metadatakeyreverb.md)
- [id3MetadataKeySeek](avfoundation/avmetadatakey/id3metadatakeyseek.md)
- [id3MetadataKeySetSubtitle](avfoundation/avmetadatakey/id3metadatakeysetsubtitle.md)
- [id3MetadataKeySignature](avfoundation/avmetadatakey/id3metadatakeysignature.md)
- [id3MetadataKeySize](avfoundation/avmetadatakey/id3metadatakeysize.md)
- [id3MetadataKeySubTitle](avfoundation/avmetadatakey/id3metadatakeysubtitle.md)
- [id3MetadataKeySynchronizedLyric](avfoundation/avmetadatakey/id3metadatakeysynchronizedlyric.md)
- [id3MetadataKeySynchronizedTempoCodes](avfoundation/avmetadatakey/id3metadatakeysynchronizedtempocodes.md)
- [id3MetadataKeyTaggingTime](avfoundation/avmetadatakey/id3metadatakeytaggingtime.md)
- [id3MetadataKeyTermsOfUse](avfoundation/avmetadatakey/id3metadatakeytermsofuse.md)
- [id3MetadataKeyTime](avfoundation/avmetadatakey/id3metadatakeytime.md)
- [id3MetadataKeyTitleDescription](avfoundation/avmetadatakey/id3metadatakeytitledescription.md)
- [id3MetadataKeyTitleSortOrder](avfoundation/avmetadatakey/id3metadatakeytitlesortorder.md)
- [id3MetadataKeyTrackNumber](avfoundation/avmetadatakey/id3metadatakeytracknumber.md)
- [id3MetadataKeyUniqueFileIdentifier](avfoundation/avmetadatakey/id3metadatakeyuniquefileidentifier.md)
- [id3MetadataKeyUnsynchronizedLyric](avfoundation/avmetadatakey/id3metadatakeyunsynchronizedlyric.md)
- [id3MetadataKeyUserText](avfoundation/avmetadatakey/id3metadatakeyusertext.md)
- [id3MetadataKeyUserURL](avfoundation/avmetadatakey/id3metadatakeyuserurl.md)
- [id3MetadataKeyYear](avfoundation/avmetadatakey/id3metadatakeyyear.md)
- [id3MetadataKeyCommerical](avfoundation/avmetadatakey/id3metadatakeycommerical.md)

### 3GP user metadata keys

- [metadata3GPUserDataKeyAlbumAndTrack](avfoundation/avmetadatakey/metadata3gpuserdatakeyalbumandtrack.md)
- [metadata3GPUserDataKeyAuthor](avfoundation/avmetadatakey/metadata3gpuserdatakeyauthor.md)
- [metadata3GPUserDataKeyCollection](avfoundation/avmetadatakey/metadata3gpuserdatakeycollection.md)
- [metadata3GPUserDataKeyCopyright](avfoundation/avmetadatakey/metadata3gpuserdatakeycopyright.md)
- [metadata3GPUserDataKeyDescription](avfoundation/avmetadatakey/metadata3gpuserdatakeydescription.md)
- [metadata3GPUserDataKeyGenre](avfoundation/avmetadatakey/metadata3gpuserdatakeygenre.md)
- [metadata3GPUserDataKeyKeywordList](avfoundation/avmetadatakey/metadata3gpuserdatakeykeywordlist.md)
- [metadata3GPUserDataKeyLocation](avfoundation/avmetadatakey/metadata3gpuserdatakeylocation.md)
- [metadata3GPUserDataKeyMediaClassification](avfoundation/avmetadatakey/metadata3gpuserdatakeymediaclassification.md)
- [metadata3GPUserDataKeyMediaRating](avfoundation/avmetadatakey/metadata3gpuserdatakeymediarating.md)
- [metadata3GPUserDataKeyPerformer](avfoundation/avmetadatakey/metadata3gpuserdatakeyperformer.md)
- [metadata3GPUserDataKeyRecordingYear](avfoundation/avmetadatakey/metadata3gpuserdatakeyrecordingyear.md)
- [metadata3GPUserDataKeyThumbnail](avfoundation/avmetadatakey/metadata3gpuserdatakeythumbnail.md)
- [metadata3GPUserDataKeyTitle](avfoundation/avmetadatakey/metadata3gpuserdatakeytitle.md)
- [metadata3GPUserDataKeyUserRating](avfoundation/avmetadatakey/metadata3gpuserdatakeyuserrating.md)

### ISO user metadata keys

- [isoUserDataKeyAccessibilityDescription](avfoundation/avmetadatakey/isouserdatakeyaccessibilitydescription.md)
- [isoUserDataKeyCopyright](avfoundation/avmetadatakey/isouserdatakeycopyright.md)
- [isoUserDataKeyDate](avfoundation/avmetadatakey/isouserdatakeydate.md)
- [isoUserDataKeyTaggedCharacteristic](avfoundation/avmetadatakey/isouserdatakeytaggedcharacteristic.md)

### ICY metadata keys

- [icyMetadataKeyStreamTitle](avfoundation/avmetadatakey/icymetadatakeystreamtitle.md)
- [icyMetadataKeyStreamURL](avfoundation/avmetadatakey/icymetadatakeystreamurl.md)

### Initializers

- [init(_:)](avfoundation/avmetadatakey/init(_:).md)
- [init(rawValue:)](avfoundation/avmetadatakey/init(rawvalue:).md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Metadata

- [Retrieving media metadata](avfoundation/retrieving-media-metadata.md)
- [AVMetadataItem](avfoundation/avmetadataitem.md)
- [AVMutableMetadataItem](avfoundation/avmutablemetadataitem.md)
- [AVMetadataIdentifier](avfoundation/avmetadataidentifier.md)
- [AVMetadataKeySpace](avfoundation/avmetadatakeyspace.md)
- [AVMetadataExtraAttributeKey](avfoundation/avmetadataextraattributekey.md)
- [AVMetadataFormat](avfoundation/avmetadataformat.md)
- [AVMetadataItemFilter](avfoundation/avmetadataitemfilter.md)