ActUse this to mark acts of an opera (as opposed to other parts that are not acts)
AdditionalThis attribute describes if a particular role was considered normal or additional.
AmountIndicates how many of a specific instrument an ensemble usually includes.
AnniversaryUse this to mark that a tour was for the anniversary (rather than the launch) of a release group.
AssistantThis typically indicates someone who is either a first-timer, or less experienced, and who is working under the direction of someone who is more experienced.
AssociateThis typically indicates someone who is less experienced and who is working under the direction of someone who is more experienced.
BonusIndicates a bonus disc
CancelledThis indicates an artist cancelled their appearance at an event.
CoUse this only for cases when someone is credited as co-[role] (co-producer, co-engineer, etc.) - which generally has a specific meaning that depends on the specific activity but is different from just "there were several people collaborating".
CoverIndicates that one entity is a cover of another entity
EmeritusThis title indicates that a conductor has at least partially retired, and no longer plays an active role with the group.
EponymousThis attribute indicates a member the band is named after and without which it wouldn't exist (e.g. Miles Davis -> Miles Davis Sextet)
ExecutiveThis attribute is to be used if the role was fulfilled in an executive capacity.
GuestThis attribute indicates a 'guest' performance where the performer is not usually part of the band.
HalfIndicates a sibling with whom the artist has only one parent in common
InstrumentalFor works that have lyrics, this indicates that those lyrics are not relevant to this recording. Examples include instrumental arrangements, or "beats" from hip-hop songs which may be reused with different lyrics.
Level of studiesSpecifies the level of studies that a student studied towards in an educational institution.
- Bachelor’s degree
- Master’s degree
- Doctoral degree
LiveThis indicates that the recording is of a live performance.
MediumThis specifies the medium the relationship applies to.
- Medium 1
- Medium 2
- Medium 3
- Medium 4
- Medium 5
- Medium 6
- Medium 7
- Medium 8
- Medium 9
MedleyThis indicates that the recording is of a medley, of which the work is one part.
MinorThis attribute describes if a particular collaboration was considered equal or minor.
MovementUse this when the parent work consists of several parts which are generally meant to be performed one after another in a particular order (rather than in any order, or multiple times, or in arbitrary selections rather than as a whole).
NumberThis attribute indicates the number of an entity in a series.
NumberUse this for operas and similar works that are separated in numbers, to specify what parts are numbers (as opposed to spoken dialog or other non-numbered parts).
OptionalIndicates that the relationship is optional - doesn't always apply.
OriginalThis attribute indicates that an artist was an original member of a group artist.
Part of collectionUse this to indicate the parent work is not intended to be performed as a whole, but is just a grouping of pieces or works that can be performed individually (collections of songs, several sonatas or concertos published as a set, books of piano pieces, etc.)
PartialThis indicates that the recording is not of the entire work, e.g. excerpts from, conclusion of, etc.
PrincipalThis indicates that the group had multiple conductors who were led by this conductor. This may be indicated by either the title of "principal conductor" or "first conductor".
ReUse this to indicate that the mastering relationship is specifically for a remaster.
SoloThis should be used when an artist is credited in liner notes or a similar source as performing a solo part.
StepFor indicating the step-spouse of the artist's parent, or the sibling relationship with the children of such a spouse
SubjectSpecifies the subject that was taught by a teacher in an institution and/or to a student.
- Classical music
- Early music
- Electronic music
- Folk music
- Music education
- Music production
- Music therapy
- Popular / rock music
TaskThis specifies the credited task(s) for a relationship that can be credited in many different ways, such as "producer", or one that is otherwise generic "miscellaneous support".
TimeLocal time a band's performance is scheduled to start, formatted HH:MM.
TranslatorThis indicates the linked entity translated something, rather than being the original writer.
VideoThis attribute indicates that the streamable content is not audio but video.
ParodyThis attribute indicates a version with satirical, ironic, or otherwise humorous intent. Parodies in most cases have altered lyrics.
TransliteratedTransliterated track listings don't change the language, just the script or spelling.
VocalThis attribute describes a type of vocal performance.
- Lead vocals (Lead or solo vocal)
- Alto vocals
- Bass-baritone vocals
- Contralto vocals
- Treble vocals (Treble or boy soprano is a young male singer with an unchanged voice in the soprano range)
- Baritone vocals
- Bass vocals
- Countertenor vocals
- Mezzo-soprano vocals
- Soprano vocals
- Tenor vocals
- Meane vocals (Meane or mean is a young male singer with a voice lower than a treble)
- Choir vocals
- Background vocals
- Other vocals (Other vocalizations)
- Spoken vocals (Spoken vocals (speech))
- Whistling (Whistling (with mouth, not a whistle))