• Doremus
    • FRBRoo-based data model and multilingual controlled vocabularies, specifically designed for music, along with documentation, examples and tutorials.
  • EBUCore
    • Ontology to describe audiovisual resources, not necessarily just musical.
  • Kanzaki Music Vocabulary
    • A vocabulary, or music ontology, to describe classical music and performances.
  • LinkedBrainz
    • Project to publish MusicBrainz data in linked data format.
  • Music Ontology
    • The Music Ontology provides a vocabulary for publishing and linking a wide range of music-related data on the Web. Music Ontology data can be published by anyone as part of a web site or an API and linked with existing data, therefore creating a music-related web of data.
  • OMRAS2 Chord Ontology
    • Ontology for describing chords and chord sequences in RDF, based on work from the Centre for Digital Music, Queen Mary, University of London.
  • Ontology for Media Resources (1.0)
    • The Ontology for Media Resources 1.0 is a core vocabulary and its mapping to a set of metadata formats describing media resources published on the Web. Formats include Dublin Core, EBUCore, MPEG-7, OGG, Quicktime, YouTube Data API Protocol, and others. Not all mappings are exact, thus there are defined types of mappings depending on differences. These types are: “exact”, “more specific”, “more general”, and “related”.
    • EBU’s specs for their broadcast content
  • Wikidata
    • Wikidata is a free and open knowledge base that can be read and edited by both humans and machines. Wikidata acts as central storage for the structured data of its Wikimedia sister projects including Wikipedia, Wikivoyage, Wiktionary, Wikisource, and others.

Controlled vocabularies

  • AFS Ethnographic Thesaurus
    • The AFS Ethnographic Thesaurus is a searchable online vocabulary that can be used to improve access to information about folklore, ethnomusicology, cultural anthropology, and related fields.
  • Library of Congress Linked Data Service
    • Provides access via searching and faceted browsing to linked data records created by Library of Congress for their various controlled vocabularies and ontologies, including LCSH, LCGFT, LCMPT, BIBFRAME, descriptive cataloging vocabularies such as carrier types, and many others.
  • Getty Art & Architecture Thesaurus Online
    • Allows searching for records for terms found in the Art & Architecture Thesaurus, a structured vocabulary currently containing over 478,000 terms for concepts related to art, architecture, and other visual cultural heritage.
  • Dublin Core Metadata Initiative Type
    • The DCMI Type Vocabulary provides a general, cross-domain list of approved terms that may be used as values for the Resource Type element to identify the genre of a resource.


  • MusicXML
    • Designed to represent musical scores in common Western musical notation; has interchange format for notation, performance, analysis, and retrieval.
  • PBCore
    • Specialized XML schema for describing and modeling broadcast content.
  • Dublin Core Metadata Initiative
    • The Dublin Core Metadata Initiative posts announcements for its ongoing webinar series and tutorials, as well as community submissions.
  • Encoded Archival Description, version 2002 official website
    • Encoded Archival Description, currently in third version (EAD3) is the international metadata transmission standard using XML for hierarchical descriptions of archival records in encoding finding aids. It is maintained by the Technical Subcommittee for Encoded Archival Standards of the Society of American Archivists, in partnership with the Library of Congress.