The Audio Commons Ontology provides main concepts and properties for describing audio content, both musical and non-musical, on the Semantic Web.
Classes: Audio clip, Signal, Audio manifestation, Node, Analog signal, Audio file, Digital signal, Audio category, Audio expression, Audio item, Audio collection, Recording, Audio publication, Physical sound, First node, Last node, Any node but the first, Any node but the last, Signal production, Syntesis.
Object Properties: node content, encodes, available as, compiled, is in audio category, homepage, image, produced signal, publication of, published, published as, recording of, published audio manifestation, audio feature, is encoded by, signal audio feature, author, available item of, container node, default container node, first node, member node, last node, next node, previous node, original file, production from.
The physical embodiment of an audio expression (e.g., a musical track, a sound, an album).
Super-Classes: frbr:Manifestation, cc:Work. Sub-Classes: Audio clip, mo:MusicalManifestation, Audio collection. Domain of: available as, publication of, container node, default container node. Range of: node content, compiled, published, published as, published audio manifestation, author, available item of.
A node of an audio collection. It encapsulates the actual content (ac:nodeContent), the position in the collection (ac:nodeIndex), and links to the previous and following node in the collection (ac:previousNode and ac:nextNode).
Super-Classes: rdf:List, _:b1, _:b2, _:b3, _:b4, _:b5. Sub-Classes: First node, Last node, Any node but the first, Any node but the last. Domain of: node content, node index. Range of: container node, default container node, member node.
The specific intellectual or artistic form that a work takes each time it is “realized”, in the audio domain (e.g., the recording or synthesis of music or sounds).
A concrete exemplar of an audio manifestation (e.g., a copy of a CD or a specific media file).
Super-Classes: frbr:Item. Sub-Classes: Audio file, mo:MusicalItem. Domain of: encodes, signal audio feature, available item of, signal channels, signal duration, signal sample rate. Range of: available as, is encoded by.
A collection of audio manifestations (e.g., a sound pack, an album, a result set of a search over a repository of audio content). As an audio collection is an audio manifestation too, collections may be nested. An audio collection is composed of nodes.