@prefix pu:      <http://purl.org/stuff/plugin-universe/> .
@prefix trn:     <http://purl.org/stuff/transmissions/> .
@prefix lv2:     <http://lv2plug.in/ns/lv2core#> .
@prefix aufx:    <https://w3id.org/aufx/ontology/1.0#> .
@prefix studio:  <http://purl.org/ontology/studio/main/> .
@prefix mo:      <http://purl.org/ontology/mo/> .
@prefix schema:  <https://schema.org/> .
@prefix skos:    <http://www.w3.org/2004/02/skos/core#> .
@prefix owl:     <http://www.w3.org/2002/07/owl#> .
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix dcterms: <http://purl.org/dc/terms/> .

## Alignment to AUFX-O and schema.org.
##
## Two audiences, two vocabularies.
##
## **AUFX-O** — the Audio Effect Ontology (Wilmering, Fazekas and Sandler,
## QMUL), which extends the Studio Ontology over the Music Ontology. It is the
## nearest prior art in RDF for describing audio effects and their parameters,
## and aligning to it is what lets music-information-retrieval work reach this
## catalogue. It is an alignment target and not the primary vocabulary: AUFX-O
## models effects in a production context — transforms, presets, signal chains —
## where this catalogue models the software artefact and how to get it.
##
## **schema.org** — how a search engine reads the catalogue. Each plugin page
## already carries schema.org JSON-LD; these statements say the same thing in
## the graph, so that a consumer of the SPARQL endpoint and a consumer of the
## HTML see one model rather than two.
##
## Every statement here is skos:closeMatch or rdfs:subPropertyOf rather than
## owl:equivalentClass or owl:sameAs, and deliberately so:
##
##  - trn:PluginProfile is used in this catalogue as the plugin itself, but its
##    name says it is a description of one. aufx:PlugIn is unambiguously the
##    plugin. Asserting equivalence would propagate that ambiguity into anyone
##    else's reasoner rather than keeping it here.
##  - AUFX-O models plugin formats as *classes* (aufx:VST, aufx:LV2) while this
##    catalogue models them as *individuals* of trn:PluginFormat. There is no
##    OWL-DL-safe identity between an individual and a class, and punning to
##    obtain one would be a modelling decision made for the convenience of a
##    mapping file.
##
## AUFX-O itself is CC BY-SA 4.0. This file asserts relationships between its
## IRIs and ours; it does not reproduce the ontology, which is why this graph is
## CC0 while aufx.ttl is not. Nothing here should be taken as endorsed by its
## authors.

pu:alignment a owl:Ontology ;
    rdfs:label "Plugin Universe alignment" ;
    rdfs:comment "Mappings from the catalogue's vocabulary to AUFX-O and schema.org. Assertions of this project, not of the aligned vocabularies' authors." ;
    dcterms:license <https://creativecommons.org/publicdomain/zero/1.0/> ;
    rdfs:seeAlso <https://w3id.org/aufx/ontology/1.0> , <https://schema.org/SoftwareApplication> .

## ── The plugin ──────────────────────────────────────────────────────────────

trn:PluginProfile
    skos:closeMatch aufx:PlugIn , schema:SoftwareApplication ;
    rdfs:comment "A catalogue entry for a plugin. Close, not equivalent: AUFX-O's PlugIn is the software as used in a production; schema.org's SoftwareApplication is the thing a search engine lists." .

trn:vendor      skos:closeMatch aufx:publisher , schema:author .
trn:bundleName  skos:closeMatch aufx:name .
trn:role        skos:closeMatch schema:applicationSubCategory .

## ── Formats ─────────────────────────────────────────────────────────────────
## AUFX-O's plugin APIs are subclasses of aufx:PlugInAPI; ours are individuals.
## closeMatch bridges the two without either side having to be re-modelled.

trn:VST2      skos:closeMatch aufx:VST .
trn:VST3      skos:closeMatch aufx:VST .
trn:AudioUnit skos:closeMatch aufx:AudioUnit .
trn:LV2       skos:closeMatch aufx:LV2 .
trn:LADSPA    skos:closeMatch aufx:LADSPA .
trn:AAX       skos:closeMatch aufx:AAX .

## ── Roles ───────────────────────────────────────────────────────────────────
## AUFX-O is an effect ontology; it has no instrument. Only the effect roles
## have a counterpart, and saying so is more useful than inventing one.

trn:AudioEffect skos:closeMatch aufx:Effect .

## ── Parameters ──────────────────────────────────────────────────────────────
## This catalogue describes parameters with lv2:port, which is why LV2 bundles
## map in without translation. AUFX-O describes them with aufx:Parameter.

lv2:ControlPort skos:closeMatch aufx:Parameter .
lv2:port        skos:closeMatch aufx:has_parameter .
lv2:name        skos:closeMatch aufx:name .
lv2:minimum     skos:closeMatch aufx:minimum_value .
lv2:maximum     skos:closeMatch aufx:maximum_value .
lv2:default     skos:closeMatch aufx:default_value .

## ── Packaging ───────────────────────────────────────────────────────────────
## The packaging layer has no AUFX-O counterpart — AUFX-O does not model
## distribution — so it aligns to schema.org alone.

pu:Package        skos:closeMatch schema:SoftwareApplication , aufx:SoftwareImplementation .
pu:packageVersion skos:closeMatch schema:softwareVersion .
pu:downloadUrl    skos:closeMatch schema:downloadUrl .
pu:fileSize       skos:closeMatch schema:fileSize .
pu:operatingSystem skos:closeMatch schema:operatingSystem , aufx:operating_system .
pu:architecture   skos:closeMatch schema:processorRequirements .
pu:audioPreview   skos:closeMatch schema:audio .
pu:donateUrl      skos:closeMatch schema:funding .

## ── Categories and description ──────────────────────────────────────────────

pu:category skos:closeMatch schema:applicationSubCategory .
pu:tag      skos:closeMatch schema:keywords .

## ── Provenance of this file ─────────────────────────────────────────────────

<https://w3id.org/aufx/ontology/1.0>
    rdfs:label "Audio Effect Ontology (AUFX-O)" ;
    dcterms:license <http://creativecommons.org/licenses/by-sa/4.0/> ;
    rdfs:comment "Wilmering, Fazekas and Sandler, Queen Mary University of London. Source: https://github.com/muddymudskipper/aufx-o" .