Music Metadata Ontology for Linked Open Data (MeLOD) is an ontology for describing musicological metadata, particularly focused on musical work and source catalogues. It serves as data model for a new RDF-based version of the Metadata Editor and Repository for MEI Data ([MerMEId](https://mermeid.edirom.de/about.html)), modernizing the old editor which was based on MEI 4.0.1. The modernization of this editor is funded by the German Research Foundation (DFG) through the project [MerMEIding to the future – Ein Community-basiertes Nachhaltigkeitsvorhaben für qualitativ hochwertige Metadaten in der digitalen Musikwissenschaft (project no. 528785591)](https://gepris.dfg.de/gepris/projekt/528785591). The ontology is derived from the MerMEId data model and extends its capabilities through semantic web technologies. The concepts are based on the [MEI (Music Encoding Initiative)](https://music-encoding.org/guidelines/v5/content/index.html) guidelines and are mostly linked to the corresponding MEI elements. It implements the FRBR (Functional Requirements for Bibliographic Records) conceptual model, organizing musical information into Work, Expression, Manifestation, and Item levels. MeLOD integrates established ontologies including [Schema.org](https://schema.org/), [LRMoo](https://cidoc-crm.org/lrmoo), [CIDOC-CRM](https://cidoc-crm.org/html/cidoc_crm_v7.1.3.html) and [DoReMus](https://data.doremus.org/ontology/) to provide a rich semantic framework for music metadata. It maintains compatibility with the [MEI (Music Encoding Initiative)](https://music-encoding.org/guidelines/v5/content/index.html) XML Schema Version 5.1, ensuring interoperability with existing MEI-based systems. The ontology supports detailed description of musical works, including their expressions, performances, physical sources, and bibliographic information. It accommodates complex musical concepts such as instrumentation, incipits, keys, and meters, while also capturing contextual information about people, places, events, and institutions involved in musical creation and performance. The ontology is designed to serve both traditional music cataloging needs and modern linked data applications in musicology. The ontology is extended through a [controlled vocabulary](https://lod.academy/melod/vocab/terms), derived from the MerMEId editor. The ontology is based on years of development work on the MerMEId tool, which was largely carried out by the [MerMEId community](https://github.com/Edirom/MerMEId/graphs/contributors). The authors would like to take this opportunity to express their gratitude to this great community and refer to the MerMEId source code on [GitHub](https://github.com/Edirom/MerMEId). This ontology reflects the modeling status prior to transfer to the new MerMEId MELODy Editor and will now be gradually expanded.
Music Metadata Ontology for Linked Open Data
Academy of Sciences and Literature Mainz
Connects the Key to the Expression. The mei element [```<key>```](https://music-encoding.org/guidelines/v5/elements/incip.html) is a direct child of the element [```<expression>```](https://music-encoding.org/guidelines/v5/elements/expression.html).
U11 has key
Specifies the performance medium, either an instrument name or voice range, e.g. Sopran or Violin. Corresponds to the mei element [```<perfRes>```](https://music-encoding.org/guidelines/v5/elements/perfRes.html).
U2 foresees use of medium of performance
has instrument family
Connects a work to its expressions. Example: Beethoven's Symphony No. 5 (work) is realized in multiple expressions, including the original orchestral version and piano arrangements. This concept is implicitly realized in MEI through a [```<expressionList>```](https://music-encoding.org/guidelines/v5/elements/expressionList.html) as a child of the mei element [```<work>```](https://music-encoding.org/guidelines/v5/elements/work.html).
R9 is realised in
Manifestation embodies Expression. This concept is realized in mei through a [```<relation rel="isEmbodimentOf" target="#Expression">```](https://music-encoding.org/guidelines/v5/elements/relation.html) as a descendant of the mei element [```<manifestation>```](https://music-encoding.org/guidelines/v5/elements/manifestation.html).
R4 embodies
Connects dimensions (height, width, depth) to the physical description of a Manifestation or Item or directly to a Watermark, Binding, Rastral or Paper format. Corresponds to the mei element [```<dimensions>```](https://music-encoding.org/guidelines/v5/elements/dimensions.html) with the parent element [```<physDesc>```](https://music-encoding.org/guidelines/v5/elements/physDesc.html).
R70 has dimension
Item (exemplar) is a materialization of a Manifestation. This concept is implicitly realized in mei through a [```<itemList>```](https://music-encoding.org/guidelines/v5/elements/itemList.html) as a child of the mei element [```<manifestation>```](https://music-encoding.org/guidelines/v5/elements/manifestation.html).
R7 exemplifies
Specifies the current holding institution of an Item, typically using institutional abbreviations or RISM sigla. Corresponds to the mei element [```<repository>```](https://music-encoding.org/guidelines/v5/elements/repository.html) with the parent element [```<physLoc>```](https://music-encoding.org/guidelines/v5/elements/physLoc.html) as a direct child of [```<item>```](https://music-encoding.org/guidelines/v5/elements/item.html).
P50 has current keeper
Connects a work, manifestation or expression to its abridged version. Target is an abridgement, condensation, or expurgation of the current entity. Corresponds to the mei element [```<relation rel="hasAbridgement">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has abridgement
Written accidental of the Key, e.g. 'sharp', capturing pitch inflection. Corresponds to the mei attribute [```@accid```](https://music-encoding.org/guidelines/v5/attribute-classes/att.accidental.html).
has accidental
Date of the acquisition of the item, may be specified as date, date span or unspecified date-span before or after. Corresponds to the mei element [```<date>```](https://music-encoding.org/guidelines/v5/elements/date.html) and the parent element [```<acquisition>```](https://music-encoding.org/guidelines/v5/elements/acquisition.html).
has acquisition
Connects a work, manifestation or expression to its adaptation. Target is an adaptation, paraphrase, free translation, variation (music), harmonization (music), or fantasy (music) of the current entity. Corresponds to the mei element [```<relation rel="hasAdaptation">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has adaptation
Associates persons or institutions as responsible entities with specific actions or items, such as handwritings or inscriptions. No direct MEI equivalent.
has agent
Connects a work, manifestation or expression to its alternate version. Target is an alternate format or simultaneously released edition of the current entity. Corresponds to the mei element [```<relation rel="hasAlternate">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has alternate
Links alternative instrumentation specifications to a detailed instrument or voice, allowing documentation of multiple possible performance resources. Corresponds to the mei element [```<perfRes>```](https://music-encoding.org/guidelines/v5/elements/perfRes.html) with the parent element [```<perfRes>```](https://music-encoding.org/guidelines/v5/elements/perfRes.html).
has alternative instrumentation
Annotation or further information to a Expression, Work or another Entity. Can be specified with a label and contains a free text paragraph. Corresponds to the mei element [```<annot>```](https://music-encoding.org/guidelines/v5/elements/annot.html).
has annotation
Connects a work, manifestation or expression to its arrangement. Corresponds to the mei element [```<relation rel="hasArrangement">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has arrangement
Connects one or more binding descriptions of an item (type of covering, boards) to the paper details or physical description of the item. Corresponds to the mei element [```<bindingDesc>```](https://music-encoding.org/guidelines/v5/elements/bindingDesc.html) with the parent element [```<physDesc>```](https://music-encoding.org/guidelines/v5/elements/physDesc.html)
has binding
Associates role names and descriptions with specific instrumentation details, particularly important for dramatic works like operas. This concept is expressed in mei by the element [```<castItem>```](https://music-encoding.org/guidelines/v5/elements/castItem.html) with the parent element [```<castList```](https://music-encoding.org/guidelines/v5/elements/castItem.html) and a child element [```<perfRes>```](https://music-encoding.org/guidelines/v5/elements/perfRes.html), which contains the voice range.
has casting detail
Certainty of the given data (such as the contribution or date), such as low, medium or high certainty. Corresponds to the mei attribute [```@cert```](https://music-encoding.org/guidelines/v5/attribute-classes/att.evidence.html).
has certainty
Connects a work, manifestation or expression to its complement. arget is a cadenza, libretto, choreography, ending for unfinished work, incidental music, or musical setting of a text of the current entity. Corresponds to the mei element [```<relation rel="hasComplement">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has complement
Indicates the completion status of an expression as complete, incomplete, or unspecified.
completion status
List of the material and contents contained within a manifestation. Can be specified with a head and contains one or multiple free text paragraphs as a content description entry. Corresponds to the mei element [```<contents>```](https://music-encoding.org/guidelines/v5/elements/contents.html) with the child elements [``` ```](https://music-encoding.org/guidelines/v5/elements/head.html) and [```<contentItem>```](https://music-encoding.org/guidelines/v5/elements/contentItem.html).
Connects the contributors to a Work, Expression, Manifestation, Event or Performance. The mei element [```<contributor>```](https://music-encoding.org/guidelines/v5/elements/contributor.html) is a direct child of the mei element [```<work>```](https://music-encoding.org/guidelines/v5/elements/work.html).
has contribution
Connects an individual person as the editor of the bibliographic entry. Corresponds to the mei element [```<editor>```](https://music-encoding.org/guidelines/v5/elements/editor.html) with the parent element [```<bibl>```](https://music-encoding.org/guidelines/v5/elements/bibl.html).
has editor
Date-Span, uncertain date or exact date on which the event or performance took place. Corresponds to the mei element [```<date>```](https://music-encoding.org/guidelines/v5/elements/date.html) with the parent element [```<event>```](https://music-encoding.org/guidelines/v5/elements/event.html).
has event date
Connects an expression to its expression parts. Corresponds to the mei element [```<relation rel="isPartOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has expressionpart
Connects information about Extent to the physical description of a Manifestation or Item. Corresponds to the mei element [```<extent>```](https://music-encoding.org/guidelines/v5/elements/extent.html) with the parent element [```<physDesc>```](https://music-encoding.org/guidelines/v5/elements/physDesc.html).
has extent
Connects the dimensions of the format of the paper in height and width to the paper details. MerMEId uses the mei element [```<dimensions type="format">```](https://music-encoding.org/guidelines/v5/elements/dimensions.html) with the parent element [```<dimensions>```](https://music-encoding.org/guidelines/v5/elements/dimensions.html) and the parent element [```<physDesc type="paper_type">```](https://music-encoding.org/guidelines/v5/elements/physDesc.html) for this concept.
has format
Connects a specific hand writing or scribe to the Item. Corresponds to the mei element [```<handList>```](https://music-encoding.org/guidelines/v5/elements/handList.html) with the parent element [```<physDesc>```](https://music-encoding.org/guidelines/v5/elements/physDesc.html).
has hand
Type as a classifying feature of a hand. Hand types can be original content or additions as defined terms. Corresponds to the mei attribute [```@type```](https://music-encoding.org/guidelines/v5/attribute-classes/att.typed.html) and the parent element [```<hand>```](https://music-encoding.org/guidelines/v5/elements/hand.html).
has hand type
Records historical events related to the creation or history of an expression or item. MerMEId uses the mei element [```<eventList type="history">```](https://music-encoding.org/guidelines/v5/elements/event.html) with the mei element [```<history>```](https://music-encoding.org/guidelines/v5/elements/history.html) as parent, which is a child of the element [```<work>```](https://music-encoding.org/guidelines/v5/elements/work.html).
has historic event
Links identifying codes or references to a Work or Expression, such as catalog numbers or thematic index citations. Corresponds to the mei element [```<identifier>```](https://music-encoding.org/guidelines/v5/elements/identifier.html) as a direct child of the mei element [```<work>```](https://music-encoding.org/guidelines/v5/elements/work.html).
has identifier
Connects a work, manifestation or expression to its imitation. Target is a parody, imitation, or travesty of the current entity. Corresponds to the mei element [```<relation rel="hasImitation">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has imitation
Connects musical incipits to an expression. This concept is expressed in MEI through the element [```<incip>```](https://music-encoding.org/guidelines/v5/elements/incip.html) as a child of the element [```<expression>```](https://music-encoding.org/guidelines/v5/elements/expression.html).
has incipit
Connects an inscription added to an item to the physical description of this item. Corresponds to the mei element [```<inscription>```](https://music-encoding.org/guidelines/v5/elements/inscription.html) with the parent element [```<physDesc>```](https://music-encoding.org/guidelines/v5/elements/physDesc.html).
has inscription
Connects the Instrumentation to the Expression. Corresponds to the mei element [```<perfMedium>```](https://music-encoding.org/guidelines/v5/elements/perfMedium.html) with the parent element [```<expression>```](https://music-encoding.org/guidelines/v5/elements/expression.html).
has instrumentation
Connects the instrument or voice with detailed information directly to the Instrumentation or to an ensemble within the Instrumentation. Corresponds to the mei element [```<perfRes>```](https://music-encoding.org/guidelines/v5/elements/perfRes.html) with the parent element [```<perfResList>```](https://music-encoding.org/guidelines/v5/elements/perfResList.html).
has instrumentation detail
Connects an instrumentation group or ensemble to the Instrumentation. Corresponds to the mei element [```<perfResList>```](https://music-encoding.org/guidelines/v5/elements/perfResList.html) with the parent element [```<perfMedium>```](https://music-encoding.org/guidelines/v5/elements/perfMedium.html).
has instrumentation group
Connects an item to its item parts. Corresponds to the mei element [```<relation rel="isPartOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has item part
Connects a manifestation to its manifestation parts. Corresponds to the mei element [```<relation rel="isPartOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has manifestation part
Connects the time signature to the Expression. The mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/meter.html) is a direct child of the element [```<expression>```](https://music-encoding.org/guidelines/v5/elements/expression.html).
has meter
Connects performance events to an Expression, that are not the first performance. MerMEId uses the mei element [```<eventList type="performance">```](https://music-encoding.org/guidelines/v5/elements/event.html) with the mei element [```<history>```](https://music-encoding.org/guidelines/v5/elements/history.html) as parent, which is a child of the element [```<work>```](https://music-encoding.org/guidelines/v5/elements/work.html).
has performance
Connects the Physical Description to the Manifestation or Item. Corresponds to the mei element [```<physDesc>```](https://music-encoding.org/guidelines/v5/elements/physDesc.html) with the parent element [```<manifestation>```](https://music-encoding.org/guidelines/v5/elements/manifestation.html) or [```<item>```](https://music-encoding.org/guidelines/v5/elements/item.html).
has physical description
Specifies the pitch name of a key signature, e.g. 'a'. Corresponds to the mei attribute [```@pname```](https://music-encoding.org/guidelines/v5/attribute-classes/att.pitch.html).
has pitch
Provenance of the item, specified as events. Can be information about previous owners or locations connected to a time stamp. Corresponds to the mei element [```<eventList>```](https://music-encoding.org/guidelines/v5/elements/eventList.html) with the parent [```<provenence>```](https://music-encoding.org/guidelines/v5/elements/provenance.html).
has provenance
Connects information about rastrals in height and width to the paper details. MerMEId uses the mei element [```<dimensions type="rastral_mirror">```](https://music-encoding.org/guidelines/v5/elements/dimensions.html) with the parent element [```<dimensions>```](https://music-encoding.org/guidelines/v5/elements/dimensions.html) and the parent element [```<physDesc type="paper_type">```](https://music-encoding.org/guidelines/v5/elements/physDesc.html) for this concept.
has rastral
Connects a work, manifestation or expression to its reconfiguration. Target has been reconfigured: bound with, split into, extracted from the current entity. Corresponds to the mei element [```<relation rel="hasReconfiguration">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has reconfiguration
Connects a work, manifestation or expression to its reproduction. Target is a reproduction, microreproduction, macroreproduction, reprint, photo-offset reprint, or facsimile of the current entity. Corresponds to the mei element [```<relation rel="hasReproduction">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has reproduction
Connects a work, manifestation or expression to its revision. Target is a revised edition, enlarged edition, or new state (graphic) of the current entity. Corresponds to the mei element [```<relation rel="hasRevision">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has revision
Connects a work, manifestation or expression to its successor. Target is a sequel or succeeding work of the current entity. Corresponds to the mei element [```<relation rel="hasSuccessor">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has successor
Connects a work, manifestation or expression to its summarization. Target is a digest or abstract of the current entity. Corresponds to the mei element [```<relation rel="hasSummarization">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has summarization
Connects a work, manifestation or expression to its supplement. Target is an index, concordance, teacher’s guide, gloss, supplement, or appendix of the current entity. Corresponds to the mei element [```<relation rel="hasSupplement">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has supplement
Associates a title with a work, manifestation or bibliography. Can be a uniform title, alternative title, or subtitle. Corresponds to the mei container element [```<titleStmt>```](https://music-encoding.org/guidelines/v5/elements/titleStmt.html) or the mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/title.html) is realized as a direct child of the element [```<work>```](https://music-encoding.org/guidelines/v5/elements/work.html).
has title
Indicates the bibliographic level of the title. Corresponds to the mei attribute [```@level```](https://music-encoding.org/guidelines/v5/elements/title.html) and the parent element [``` ```](https://music-encoding.org/guidelines/v5/elements/title.html).
has title level
Links one or more transcribed title page information to a Manifestation or Item, preserving original formatting and content. Corresponds to the mei element [```<titlePage>```](https://music-encoding.org/guidelines/v5/elements/titlePage.html) with the parent element [```<physDesc>```](https://music-encoding.org/guidelines/v5/elements/physDesc.html).
has title page
Type as a classifying feature of a title. Title types can be original or alternative. Corresponds to the mei attribute [```@type```](https://music-encoding.org/guidelines/v5/attribute-classes/att.typed.html) and the parent element [``` ```](https://music-encoding.org/guidelines/v5/elements/title.html).
has title type
Connects a work, manifestation or expression to its transformation. Target is a dramatization, novelization, versification, or screenplay of the current entity. Corresponds to the mei element [```<relation rel="hasTransformation">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has transformation
Connects a work, manifestation or expression to its translation. Target is a literal translation or transcription (music) of the current entity. Corresponds to the mei element [```<relation rel="hasTranslation">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has translation
Connects a place to a venue of a performance event. Corresponds to the mei element [```<geogName type="venue">```](https://music-encoding.org/guidelines/v5/elements/geogName.html) with the parent element [```<event>```](https://music-encoding.org/guidelines/v5/elements/event.html).
has venue
Connects the Watermark to the paper details or the general physical description of a Manifestation or Item. Corresponds to the mei element [```<watermark>```](https://music-encoding.org/guidelines/v5/elements/watermark.html) with the parent element [```<physDesc>```](https://music-encoding.org/guidelines/v5/elements/physDesc.html).
has watermark
Connects a work to its work parts. Corresponds to the mei element [```<relation rel="isPartOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
has work part
Inverse relationship of hasAbridgement. Corresponds to the mei element [```<relation rel="isAbridgementOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is abridgement of
Inverse relationship of hasAdaptation. Corresponds to the mei element [```<relation rel="isAdaptationOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is adaptation of
Inverse relationship of hasAlternate. Corresponds to the mei element [```<relation rel="isAlternateOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is alternate of
Inverse relationship of hasArrangement. Corresponds to the mei element [```<relation rel="isArrangementOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is arrangement of
Inverse relationship of hasComplement. Corresponds to the mei element [```<relation rel="isComplementOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is complement of
Inverse relationship of hasPart. Connects an expression to its expression parts. Corresponds to the mei element [```<relation rel="isPartOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is expression part of
Inverse relationship of hasImitation. Corresponds to the mei element [```<relation rel="isImitationOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is imitation of
Describes the mode of the Key, e.g. 'minor' or 'major'. Corresponds to the mei attribute [```@mode```](https://music-encoding.org/guidelines/v5/attribute-classes/att.keyMode.html).
is in mode
Inverse relationship of hasPart. Connects an item to its item parts. Corresponds to the mei element [```<relation rel="isPartOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is item part of
Inverse relationship of hasPart. Connects a manifestation to its manifestation parts. Corresponds to the mei element [```<relation rel="isPartOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is manifestation part of
Inverse relationship of hasReconfiguration. Corresponds to the mei element [```<relation rel="isReconfigurationOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is reconfiguration of
Inverse relationship of hasReproduction. Corresponds to the mei element [```<relation rel="isReproductionOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is reproduction of
Inverse relationship of hasRevision. Corresponds to the mei element [```<relation rel="isRevisionOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is revision of
Inverse relationship of hasSuccessor. Corresponds to the mei element [```<relation rel="isSuccessorOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is successor of
Inverse relationship of hasSummarization. Corresponds to the mei element [```<relation rel="isSummarizationOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is summarization of
Inverse relationship of hasSupplement. Corresponds to the mei element [```<relation rel="isSupplementOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is supplement of
Inverse relationship of hasTransformation. Corresponds to the mei element [```<relation rel="isTransformationOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is transformation of
Inverse relationship of hasTranslation. Corresponds to the mei element [```<relation rel="isTranslationOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is translation of
Inverse relationship of hasPart. Connects a work to its work parts. Corresponds to the mei element [```<relation rel="isPartOf">```](https://music-encoding.org/guidelines/v5/elements/relation.html) with the parent element [```<relationList>```](https://music-encoding.org/guidelines/v5/elements/relationList.html). The FRBR Relationships are defined in MEI as [data.FRBRRELATIONSHIP](https://music-encoding.org/guidelines/v5/data-types/data.FRBRRELATIONSHIP.html)
is work part of
Connects an individual person as the author to the bibliographic entry. Corresponds to the mei element [```<author>```](https://music-encoding.org/guidelines/v5/elements/author.html) with the parent element [```<bibl>```](https://music-encoding.org/guidelines/v5/elements/bibl.html).
author
Records the geographical location where a person was born. No direct MEI equivalent, but can be expressed through TEI elements.
birth place
Establishes connections between works, expressions, events, or performances and their relevant bibliographic references. Corresponds to the mei element [```<biblList>```](https://music-encoding.org/guidelines/v5/elements/biblList.html) with the child element [```<bibl>```](https://music-encoding.org/guidelines/v5/elements/bibl.html).
citation
Establishes hierarchical relationships between places, connecting venues to their containing geographical locations.
contained in place
data feed element
Date-Span or uncertain time on which the Expression or Watermark was created. Corresponds to the mei element [```<creation>```](https://music-encoding.org/guidelines/v5/elements/creation.html) with the child element [```<date>```](https://music-encoding.org/guidelines/v5/elements/date.html).
date created
Records the geographical location where a person died. No direct MEI equivalent, but can be expressed through TEI elements.
death place
Records the first performance of an expression. MerMEId uses the mei element [```<eventList type="performance">```](https://music-encoding.org/guidelines/v5/elements/event.html) with the mei element [```<history>```](https://music-encoding.org/guidelines/v5/elements/history.html) as parent, which is a child of the element [```<work>```](https://music-encoding.org/guidelines/v5/elements/work.html). There is no distinguishment to other types of performances in mei.
first performance
Records the establishment date of an institution, which can be specified as an exact date or date range. No direct MEI equivalent, but can be expressed through TEI elements.
founding date
Links professional or occupational roles to a person, such as composer, musician, or conductor. No direct MEI equivalent, but can be expressed through TEI elements.
has occupation
Connects a bibliographic entry to its bibliography parts. Indicates that a bibliographic entry is part of a larger work or series. Provides structured information about the containing publication. Corresponds to the mei element [```<series>```](https://music-encoding.org/guidelines/v5/elements/series.html) with the parent element [```<bibl>```](https://music-encoding.org/guidelines/v5/elements/bibl.html).
has part
Expression components included in a Expression, for example specific movements. Corresponds to the mei container element [```<componentList>```](https://music-encoding.org/guidelines/v5/elements/componentList.html), which contains one or more [```<expression>```](https://music-encoding.org/guidelines/v5/elements/expression.html) mei elements.
included composition
Inverse relationship of hasPart. Indicates that a bibliographic entry is part of a larger work or series. Provides structured information about the containing publication. Corresponds to the mei element [```<series>```](https://music-encoding.org/guidelines/v5/elements/series.html) with the parent element [```<bibl>```](https://music-encoding.org/guidelines/v5/elements/bibl.html).
is part of
item
Connects a place to an action or corporation. Corresponds to the mei element [```<geogName>```](https://music-encoding.org/guidelines/v5/elements/geogName.html) with the parent element [```<event>```](https://music-encoding.org/guidelines/v5/elements/event.html) or [```<corpName>```](https://music-encoding.org/guidelines/v5/elements/corpName.html).
location
Marks the location where the Expression or Watermark was created. Corresponds to the mei element [```<creation>```](https://music-encoding.org/guidelines/v5/elements/creation.html) with the child element [```<geogName>```](https://music-encoding.org/guidelines/v5/elements/geogName.html).
location created
Specifies the location where a person performed their occupation. No direct MEI equivalent, but can be expressed through TEI elements.
occupation location
Links publication information to manifestations or bibliographic entries. Corresponds to the mei element [```<pubStmt>```](https://music-encoding.org/guidelines/v5/elements/pubStmt.html) with the parent element [```<manifestation>```](https://music-encoding.org/guidelines/v5/elements/manifestation.html) and [```<imprint>```](https://music-encoding.org/guidelines/v5/elements/imprint.html) with the parent element [```<bibl>```](https://music-encoding.org/guidelines/v5/elements/bibl.html).
publication
Connects an individual person by whom the manifestation or bibliographic entry is published. Corresponds to the mei element [```<publisher>```](https://music-encoding.org/guidelines/v5/elements/publisher.html) with the child element [```<persName>```](https://music-encoding.org/guidelines/v5/elements/persName.html)
published by
Provides the number of performers of an instrument or voice, e.g. 2 Violas. Corresponds to the mei attribute [```@count```](https://music-encoding.org/guidelines/v5/attribute-classes/att.perfRes.basic.html).
U30 foresees quantity of medium of performance
Label or heading of an instrumentation or instrumentation group, for example 'orchestra'. MerMEId uses the mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/head.html) with the mei element [```<perfResList>```](https://music-encoding.org/guidelines/v5/elements/perfResList.html) as parent for this concept.
P3 has note
Value of a Dimension or Extent, e.g. 20. Specifies a numerical measurement. Corresponds to the mei attribute [```@quantity```](https://music-encoding.org/guidelines/v5/attribute-classes/att.quantity.html).
P90 has value
Specifies a meter symbol instead of numeric values, such as 'c' for common time. Corresponds to the mei attribute [```@sym```](https://music-encoding.org/guidelines/v5/attribute-classes/att.meterSig.log.html).
uses meter symbol
Abbreviation for a Institution/the RISM Sigla of the Institution, also used for an abbreviation of a bibliographic entry. Corresponds to the mei element [``````](https://music-encoding.org/guidelines/v5/elements/abbr.html)
has abbreviation
Description of significant additions made by the composer. MerMEId uses the mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/p.html) with the mei element [```<addDesc>```](https://music-encoding.org/guidelines/v5/elements/addDesc.html) as parent for this concept. The mei guidelines recommend [```<annot type="autograph">```](https://music-encoding.org/guidelines/v5/content/metadata.html#sourcesAdditions).
has add desc autograph
Description of significant additions made by a foreign person, who is not the composer. MerMEId uses the mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/p.html) with the mei element [```<addDesc>```](https://music-encoding.org/guidelines/v5/elements/addDesc.html) as parent for this concept. The mei guidelines recommend [```<annot type="autograph">```](https://music-encoding.org/guidelines/v5/content/metadata.html#sourcesAdditions).
has add desc foreign
Documents the physical condition of a manifestation, paper, or binding. Corresponds to the mei element [```<condition>```](https://music-encoding.org/guidelines/v5/elements/condition.html).
has condition
Contains non-heraldic text content of a watermark. MerMEId uses the mei element [```<watermark type="text">```](https://music-encoding.org/guidelines/v5/elements/watermark.html).
has content
The historical, social, intellectual, artistic, or other context within the Work was conceived or the Expression was realized. Corresponds to the mei element [```<context>```](https://music-encoding.org/guidelines/v5/elements/context.html).
has context
Describes decorative elements in the physical description of the item or binding, such as ornamental features. Corresponds to the mei element [```<decoDesc>```](https://music-encoding.org/guidelines/v5/elements/decoDesc.html) or [```<decoNote>```](https://music-encoding.org/guidelines/v5/elements/decoNote.html).
has deco desc
Shows the domain of the data catalog, which is the start for every IRI of each entity.
has domain
Duration of the performance. Corresponds to the mei element [```<perfDur>```](https://music-encoding.org/guidelines/v5/elements/perfDuration.html).
has duration
Previous shelfmark or signature used to identify the item in an archive, repository or library before the current shelfmark was assigned. No direct MEI equivalent.
has former shelfmark
Contains a heraldic formula or phrase as heraldic component of a Watermark. Corresponds to the mei element [```<heraldry>```](https://music-encoding.org/guidelines/v5/elements/heraldry.html).
has heraldry
Documents the creation history of a work through a free text description, providing context about its expressions. Corresponds to the mei element [```<history>```](https://music-encoding.org/guidelines/v5/elements/history.html) with the child element [``` ```](https://music-encoding.org/guidelines/v5/elements/p.html).
has history desc
Opening words of a musical composition or the Music Incipit. Corresponds to the mei element [```<incipText>```](https://music-encoding.org/guidelines/v5/elements/incipText.html).
has incipit text
Value of the Music Incipit. Contains the data of a plaine and easy code and additional information about clef, keysig and timesig. Corresponds to the mei element [```<incipCode>```](https://music-encoding.org/guidelines/v5/elements/incipCode.html).
has incipit value
MEI score of the music incipit, available via url. Corresponds to the mei element [```<score>```](https://music-encoding.org/guidelines/v5/elements/score.html) with the parent mei element [```<incip>```](https://music-encoding.org/guidelines/v5/elements/incip.html).
has MEI score
Information about mensuration of an Expression. Corresponds to the mei element [```<mensuration>```](https://music-encoding.org/guidelines/v5/elements/mensuration.html).
has mensuration
Captures the number of beats in a measure as numerical value, shown as the top number of the meter signature. Corresponds to the mei attribute [```@count```](https://music-encoding.org/guidelines/v5/attribute-classes/att.meterSig.log.html).
has meter count
Describes the page orientation of the given paper details, such as landscape or portrait. MerMEId uses the mei element [```<term>```](https://music-encoding.org/guidelines/v5/elements/term.html) with the mei element [```<dimensions>```](https://music-encoding.org/guidelines/v5/elements/dimensions.html) as parent for this concept.
has orientation
Describes the quality characteristics of the paper material. MerMEId uses the mei element [```<support type="paper_quality">```](https://music-encoding.org/guidelines/v5/elements/support.html) with the mei element [```<supportDesc>```](https://music-encoding.org/guidelines/v5/elements/supportDesc.html) as parent for this concept.
has paper quality
Designation assigned to a resource by a music publisher, usually printed at the bottom of each page, and sometimes appearing also on the title page. Corresponds to the mei element [```<plateNum>```](https://music-encoding.org/guidelines/v5/elements/plateNum.html).
has plate num
Description of the character's role in a drama, found for example in an opera. Corresponds to the mei element [```<roleDesc>```](https://music-encoding.org/guidelines/v5/elements/roleDesc.html).
has role desc
Name of a dramatic role, given for example in the cast list of an opera. Corresponds to the mei element [```<role>```](https://music-encoding.org/guidelines/v5/elements/role.html).
has role name
Contains a description of the letters or characters used in an Item. Corresponds to the mei element [```<scriptDesc>```](https://music-encoding.org/guidelines/v5/elements/scriptDesc.html).
has script desc
Shelfmark or signature, which identifies the item in an archive, repository or library. Corresponds to the mei element [```<identifier>```](https://music-encoding.org/guidelines/v5/elements/support.html) with the parent element [```<physLoc>```](https://music-encoding.org/guidelines/v5/elements/physLoc.html).
has shelfmark
Contains a word or phrase describing an official stamp mark indicating ownership, genuineness or validity. Corresponds to the mei element [```<stamp>```](https://music-encoding.org/guidelines/v5/elements/stamp.html).
has stamp
Description of the foliation made by the composer. MerMEId uses the mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/p.html) with the mei element [```<supportDesc>```](https://music-encoding.org/guidelines/v5/elements/supportDesc.html) as parent for this concept.
has support desc autograph
Description of foliation made by a foreign person, who is not the composer. MerMEId uses the mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/p.html) with the mei element [```<supportDesc>```](https://music-encoding.org/guidelines/v5/elements/supportDesc.html) as parent for this concept.
has support desc foreign
Specifies tempo of an Expression through text or symbols. The description can also include mood or style indications, e.g. "allarg.", "a tempo", "cantabile", "Moderato", "♩=60", "Moderato ♩ =60". Corresponds to the mei element [```<tempo>```](https://music-encoding.org/guidelines/v5/elements/tempo.html).
has tempo
Specifies the beat unit, shown as the bottom number of the meter signature. Corresponds to the mei attribute [```@unit```](https://music-encoding.org/guidelines/v5/attribute-classes/att.meterSig.log.html).
in meter unit
Indicates whether a performance resource (instrument or voice) is optional (ad libitum). Corresponds to the mei attribute [```@adlib```](https://music-encoding.org/guidelines/v5/attribute-classes/att.adlibitum.html).
is ad lib
Identifies whether the performance resource (instrument or voice) is a soloist. Corresponds to the mei attribute [```@solo```](https://music-encoding.org/guidelines/v5/attribute-classes/att.perfRes.html).
is soloist
The exact date of the act/creation/event. Corresponds to the mei attribute [```@isodate```](https://music-encoding.org/guidelines/v5/attribute-classes/att.datable.html).
isodate
The time of the act/creation/event is unclear, but not after a specific date or event occurred (before or while). Corresponds to the mei attribute [```@notafter```](https://music-encoding.org/guidelines/v5/attribute-classes/att.datable.html).
not after
The time of the act/creation/event is unclear, but not before a specific date or event occurred (after or while). Corresponds to the mei attribute [```@notbefore```](https://music-encoding.org/guidelines/v5/attribute-classes/att.datable.html).
not before
Position of a watermark on the paper, specifying its location in relation to the sheet (e.g. left part of the paper).
paper position
Paragraph which is on a title page or abstract in a logical prose passage. Corresponds to the mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/p.html).
paragraph
The application which was used to create the data catalog, for example MerMEId.
uses application
Address of an organization or building. Corresponds to the mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/address.html).
address
Birth date of a person. No direct MEI equivalent, but can be expressed in TEI.
birth date
Status of the musical work, e.g. authenticity.
creative work status
Death date of a person. No direct MEI equivalent, but can be expressed in TEI.
death date
Description or further information to a concept.
description
Ending date of a date span. Corresponds to the mei attribute [```@enddate```](https://music-encoding.org/guidelines/v5/attribute-classes/att.datable.html).
end date
Family name of a person. Corresponds to the mei element [```<persName>```](https://music-encoding.org/guidelines/v5/elements/persName.html).
family name
Gender of a person. No concept available in MEI, but can be expressed in TEI.
gender
Forename of a person. Corresponds to the mei element [```<persName>```](https://music-encoding.org/guidelines/v5/elements/persName.html).
given name
Quantitative aspects of the exemplar or expression, e.g. number of pages in a manifestation or the bars in an expression. Corresponds to the mei element [```<extent>```](https://music-encoding.org/guidelines/v5/elements/extent.html).
material extent
Bibliographic scope/pagination of a biblioghraphic reference or the page range of paper details of a manifestation or item, such as page numbers or named subdivisions. Corresponds to the mei element [```<biblScope>```](https://music-encoding.org/guidelines/v5/elements/biblScope.html).
pagination
Series number position of a bibliographic entry within a larger series. No direct MEI equivalent.
position
Start date of a date span. Corresponds to the mei attribute [```@startdate```](https://music-encoding.org/guidelines/v5/attribute-classes/att.datable.html).
start date
Stores quantifiable dimensions like height, width, or depth with their corresponding measurement units. Corresponds to the mei element [```<dimensions>```](https://music-encoding.org/guidelines/v5/elements/dimensions.html).
E54 Dimension
Measurement Unit
Provides the specific accidentals of a key as defined terms, such as flat or sharp.
Accidental
Represents Individuals, institutions or organizations responsible for actions to intellectual content or events.
Agent
Annotation or further information to a Work, Expression or Manifestation. Contains an optional label and a free text paragraph. Corresponds to the mei element [```<annot>```](https://music-encoding.org/guidelines/v5/elements/annot.html).
Title
Authority
Bibliographic Genre
Bibliographic Level
Identifies a structured bibliographic entry with publication details, authors, and types as a single entity. Provides publication information, authors, editors and bibliographic type. Corresponds to the mei element [```<bibl>```](https://music-encoding.org/guidelines/v5/elements/bibl.html).
Bibliography
Information on the physical description of the binding of the Manifestation or Item, including types of covering and boards. Corresponds to the mei element [```<binding>```](https://music-encoding.org/guidelines/v5/elements/binding.html).
Binding
Details on a single role with name and description. Connects to the Instrumentation Detail. Corresponds to the mei element [```<castItem>```](https://music-encoding.org/guidelines/v5/elements/castItem.html).
Casting Detail
Defines the certainty of a specific contribution with the terms low, medium, high or unknown.
Certainty
Provides classifications for each entity, that are defined terms for a specific concept, like Vocal Music, Instrumental Music or Stage Music.
Classification
Provides classifications for manifestations and items, that are defined terms for a specific concept, like Authority, Presentation or Scoring.
Classification of Manifestation
Completeness
Defines the completion status of an expression as defined terms, which are complete, incomplete or unknown.
Completion Status
Content
Represents Individuals, institutions or organizations responsible for contributions to intellectual content or events. Corresponds to the mei element [```<contributor>```](https://music-encoding.org/guidelines/v5/elements/contributor.html).
Contribution
Represents a point in time or the time period between two such points as well as a short desriptive text. Provides exact dates, date spans, and uncertain dates. Corresponds to the mei element [```<date>```](https://music-encoding.org/guidelines/v5/elements/date.html).
Date
Entity
Identifies an event or a specific action as a single entity, containing historical information. Provides a description of the associated event, including contributors, dates and locations where the event took place. Corresponds to the mei element [```<event type="history">```](https://music-encoding.org/guidelines/v5/elements/event.html).
Event
Exact Date
Intellectual or artistic realization of a work. This class contains description at the FRBR expression level. Corresponds to the mei element [```<expression>```](https://music-encoding.org/guidelines/v5/elements/expression.html).
Expression
Records the extent or of a resource, such as number of pages or duration. Corresponds to the mei element [```<extent>```](https://music-encoding.org/guidelines/v5/elements/extent.html).
Extent
Individual handwriting or distinct scribe on a item, specified with the individual person, writing medium and type. Corresponds to the mei element [```<hand>```](https://music-encoding.org/guidelines/v5/elements/hand.html).
Hand
Provides the type of the writing as defined terms, such as original content, additions or notes.
Hand type
Index identifier consisting of a label (e.g., catalog name) and it's value. Corresponds to the mei element [```<identifier>```](https://music-encoding.org/guidelines/v5/elements/identifier.html).
Identifier
Provides information on an inscription added to an item, such as a bookplates, signatures of the author or gift notes. Corresponds to the mei element [```<inscription>```](https://music-encoding.org/guidelines/v5/elements/inscription.html).
Inscription
Identifies an institution or group of people that acts as a single entity. Corresponds to the mei element [```<corpName>```](https://music-encoding.org/guidelines/v5/elements/corpName.html).
Institution
Provides the specific Instrument or Voice that is part of an instrumentation as defined terms. Examples: Violin, Viola or Tenor.
Instrument
Provides the instrument family for a specific instrument as a defined term, for example Woodwinds or Strings.
Instrument Family
Instrumental music
Identifies the solo and ensemble instrumental and vocal resources of a composition – such as an orchestra – as a single entity. Provides detailed information on each instrument or voice. Corresponds to the mei element [```<perfMedium>```](https://music-encoding.org/guidelines/v5/elements/perfMedium.html).
Instrumentation
Details about a specific instrument or voice in the instrumentation, including number of performers, soloist status, and optional casting details. Corresponds to the mei element [```<perfRes>```](https://music-encoding.org/guidelines/v5/elements/perfRes.html).
Instrumentation Detail
Multiple instruments or voices treated as a group. Corresponds to the mei element [```<perfResList>```](https://music-encoding.org/guidelines/v5/elements/perfResList.html).
Instrumentation Group
A single instance or exemplar of a manifestation, like a specific copy of a score. This class contains descriptions at the FRBR item level. Corresponds to the mei element [```<item>```](https://music-encoding.org/guidelines/v5/elements/item.html).
Item
Contains key signature information including pitch name, accidental and mode (e.g., 'A minor'). Corresponds to the mei element [```<key>```](https://music-encoding.org/guidelines/v5/elements/key.html).
Key
Provides various languages as defined terms in which a resource is written, for example English, German or French.
Language
A bibliographic description of a physical embodiment of an expression of a work. This class contains description at the FRBR manifestation level. Corresponds to the mei element [```<manifestation>```](https://music-encoding.org/guidelines/v5/elements/manifestation.html).
Manifestation
Provides the type of writing medium as defined terms, such as ink or pencil.
Medium
Contains information about the time signature of the expression or movements, including count, unit and optional meter symbols. Provides information about count and unit or a meter symbol, such as 'c'. Corresponds to the mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/meter.html).
Meter
Provides the specific mode of a key as defined terms, such as major or minor.
Mode
The opening music and/or corresponding text of a musical expression. Provides the plaine and easy code, text incipit and MEI score. Corresponds to the mei element [```<incip>```](https://music-encoding.org/guidelines/v5/elements/incip.html).
Music Incipit
Paper details of a Manifestation (if it is the same for all Items) or of an Item. Provides information in paper format, rastrals, range, orientation and paper quality. Corresponds to the mei element [```<physDesc type="paper_type">```](https://music-encoding.org/guidelines/v5/elements/physDesc.html).
Paper Detail
Identifies a presentation of one or more musical works as a single entity. Provides the same properties as in an Event, expanded by information about the venue. Corresponds to the mei element [```<event type="performance">```](https://music-encoding.org/guidelines/v5/elements/event.html).
Performance Event
Identifies an individual that acts as a single entity. Provides forename, surname, death and birth dates and an occupation of the person. Corresponds to the mei element [```<persName>```](https://music-encoding.org/guidelines/v5/elements/persName.html).
Person
Physical properties of a Manifestation (if it is the same for all Items) or of an Item. Provides information on Extent, Dimensions, Watermark, Stamp, physical materials and score format. Corresponds to the mei element [```<physDesc>```](https://music-encoding.org/guidelines/v5/elements/physDesc.html).
Physical Description
Provides the specific pitches of a key as defined terms, such as c, d or e.
Pitch
Identifies a geographic location with specified name and optional hierarchical relationships as a single entity. Corresponds to the mei element [```<geogName type="place">```](https://music-encoding.org/guidelines/v5/elements/geogName.html).
Place
Presentation
Information on the physical description of rastral mirrors used to rule staff lines. MerMEId uses the mei element [```<dimensions type="rastral_mirror">```](https://music-encoding.org/guidelines/v5/elements/dimensions.html) for this concept.
Rastral
Provides specific roles for contributors or agents of an entity, that are defined terms. Example: Composer, Arranger or Lyricist.
Role
Scoring
Stage music
State
Title of a work, manifestation or bibliographic entry, with optional type specification. Corresponds to the mei element [``` ```](https://music-encoding.org/guidelines/v5/elements/title.html).
Contains a transcription of the title page of a Manifestation or Item. Provides information with the paragraph and the type of the Title Page. Corresponds to the mei element [```<titlePage>```](https://music-encoding.org/guidelines/v5/elements/titlePage.html).
Title Page
Title Type
Identifies a venue, such as a specific theatre as a single entity. Corresponds to the mei element [```<geogName type="venue">```](https://music-encoding.org/guidelines/v5/elements/geogName.html).
Venue
Vocal music
Description of a Watermark found in paper. Provides a heraldry description and information on completeness, positioning on the page and paper production. Corresponds to the mei element [```<watermark>```](https://music-encoding.org/guidelines/v5/elements/watermark.html).
Watermark
Provides a detailed description of a work — a distinct intellectual or artistic creation. This class contains description at the FRBR work level. Corresponds to the mei element [```<work>```](https://music-encoding.org/guidelines/v5/elements/work.html).
Work
Data Catalog, which could be a Source or Work Catalog.
Data Catalog
Feed of multiple files as a collection, like a DataFeed of Symphonies.
Data Feed
Item of a Data Feed, for example one Expression entity.
Data Feed Item
Occupation of a Person. Contains information about name and occupation location.
Occupation
Publication Event for a Manifestation. Provides information on publisher, publication place and date. Corresponds to the mei element [```<pubStmt>```](https://music-encoding.org/guidelines/v5/elements/pubStmt.html).
Publication Event
Type of a concept (which is not a title) as a classifying feature. Corresponds to the mei attribute [```@type```](https://music-encoding.org/guidelines/v5/attribute-classes/att.typed.html).
P2 has type
Unit of a dimension, e.g. 'cm'. Records the unit of the value measurement. Corresponds to the mei attribute [```@unit```](https://music-encoding.org/guidelines/v5/attribute-classes/att.measurement.html).
P91 has unit
Classification to a concept or resource. Provides keywords or phrases describing this resource and it's content. Corresponds to the mei element [```<classification>```](https://music-encoding.org/guidelines/v5/elements/classification.html) with the child [```<termList>```](https://music-encoding.org/guidelines/v5/elements/termList.html) and the child [```<term>```](https://music-encoding.org/guidelines/v5/elements/term.html)
has classification
Classification to a manifestation written as free text. Corresponds to the mei element [```<classification>```](https://music-encoding.org/guidelines/v5/elements/classification.html) with the child [```<termList>```](https://music-encoding.org/guidelines/v5/elements/termList.html) and the child [```<term>```](https://music-encoding.org/guidelines/v5/elements/term.html)
Classification to a manifestation. Provides keywords or phrases describing the manifestation and it's content. Corresponds to the mei element [```<classification>```](https://music-encoding.org/guidelines/v5/elements/classification.html) with the child [```<termList>```](https://music-encoding.org/guidelines/v5/elements/termList.html) and the child [```<term>```](https://music-encoding.org/guidelines/v5/elements/term.html)
has classification of manifestation
Writing medium of a hand writing, such as ink, pen or pencil. Corresponds to the mei attribute [```@medium```](https://music-encoding.org/guidelines/v5/attribute-classes/att.medium.html).
has medium
Paper maker, from whom the paper of a Watermark was made.
has paper maker
Paper mill or factory, where the paper of a Watermark was printed.
has paper mill
Records the physical materials used in the Item or Manifestation, such as paper details. Information about the use of a specific ink would be described by the property hasMedium and the Class Hand. Corresponds to the mei element [```<physMedium>```](https://music-encoding.org/guidelines/v5/elements/physMedium.html).
Records the physical materials, which are not paper descriptions, used in the Item or Manifestation, as a Literal. Information about the use of a specific ink would be described by the property hasMedium and the Class Hand. Corresponds to the mei element [```<physMedium>```](https://music-encoding.org/guidelines/v5/elements/physMedium.html).
has phys medium
Role of contributing, such as a composer, lyricist or musician. Corresponds to the mei attribute [```@role```](https://music-encoding.org/guidelines/v5/attribute-classes/att.name.html).
has role
Twin mark of a Watermark as an external resource.
has twin mark
Specifies the language used in an Expression or bibliographic entry. Can be used multiple times. Corresponds to the mei element [```<language>```](https://music-encoding.org/guidelines/v5/elements/language.html) and [```<langUsage>```](https://music-encoding.org/guidelines/v5/elements/langUsage.html). Note that the use of language refers to the Expression and not to the Work.
in language
Categorizes a bibliographic entry by form, style or content (e.g., book, article, website). Corresponds to the mei element [```<genre>```](https://music-encoding.org/guidelines/v5/elements/genre.html).
genre
included in data catalog
Name of a place, occupation or institution. Corresponds to the mei element [```<name>```](https://music-encoding.org/guidelines/v5/elements/name.html).
name