path: root/lv2/lv2plug.in/ns/ext/port-groups/port-groups.ttl

# LV2 Port Groups Extension
# Copyright 2009-2011 David Robillard <d@drobilla.net>
# Copyright 2008-2009 Lars Luthman <lars.luthman@gmail.com>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

@prefix pg:   <http://lv2plug.in/ns/ext/port-groups#> .
@prefix lv2:  <http://lv2plug.in/ns/lv2core#> .
@prefix rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl:  <http://www.w3.org/2002/07/owl#> .
@prefix xsd:  <http://www.w3.org/2001/XMLSchema#> .
@prefix doap: <http://usefulinc.com/ns/doap#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix amb:  <http://ambisonics.ch/standards/channels/> .

<http://lv2plug.in/ns/ext/port-groups> a lv2:Specification ;
	doap:license <http://opensource.org/licenses/isc> ;
	doap:name    "LV2 Port Groups" ;
	doap:shortdesc "Multi-channel groups of LV2 ports." ;
	rdfs:comment "Defines semantic groupings of LV2 ports" ;
	doap:maintainer [
		a foaf:Person ;
		foaf:name "Lars Luthman" ;
		foaf:mbox <mailto:lars.luthman@gmail.com>
	] , [
		a foaf:Person ;
		foaf:name     "David Robillard" ;
		foaf:homepage <http://drobilla.net/> ;
		rdfs:seeAlso  <http://drobilla.net/drobilla.rdf>
	] .


## Core Classes / Properties

pg:Group a rdfs:Class ;
	rdfs:label "LV2 Port Group" ;
	rdfs:subClassOf [ a owl:Restriction ;
		owl:onProperty     lv2:symbol ;
		owl:someValuesFrom xsd:string ;
		owl:cardinality    1 ;
        rdfs:comment   """
A pg:Group MUST have exactly one string lv2:symbol.  This symbol must be
unique according to the same rules as the lv2:symbol for an lv2:Port, where
group symbols and port symbols reside in the same namespace.  In other words,
a group on a plugin MUST NOT have the same symbol as another group or a port
on that plugin.  Rationale: Hosts or bindings may find it useful to construct
an identifier to refer to groups for the same reasons this is useful for ports.
"""
	] ;
	rdfs:subClassOf [ a owl:Restriction ;
		owl:onProperty     pg:hasRole ;
		owl:someValuesFrom pg:RoleAssignment ;
		owl:minCardinality 1 ;
        rdfs:comment   "A Group MUST have at least one role assignment"
	] ;
	rdfs:comment """
A grouping of ports that can be logically considered a single "stream", e.g.
two audio ports in a group may form a stereo stream.  The pg:source predicate
can also be used to describe this correspondence between separate ports/groups.
""" .

pg:index a rdf:Property ;
    rdfs:domain  pg:RoleAssignment ;
    rdfs:range   xsd:nonNegativeInteger ;
    rdfs:label   "index" ;
    rdfs:comment "Index of a role within some group" .

pg:RoleAssignment a rdfs:Class ;
	rdfs:label "Role Assignment" ;
	rdfs:comment "A numbered role within some Group." ;
	rdfs:subClassOf [ a owl:Restriction ;
		owl:onProperty     pg:index ;
		owl:cardinality    1 ;
        rdfs:comment """
A RoleAssignment MUST have exactly one index.
""" ] ;
	rdfs:subClassOf [ a owl:Restriction ;
		owl:onProperty     pg:role ;
		owl:cardinality    1 ;
        rdfs:comment """
A RoleAssignment MUST have exactly one role.
""" ] ;
    rdfs:comment """
All group definitions MUST define the order of channels.  Note that this
does not have anything to do with port indices, this information is only
defined here for use by other extensions.  For simply assigning groups
and roles to a basic LV2 plugin, index is irrelevant.
""" .

pg:hasRole a rdf:Property ;
	rdfs:domain  pg:Group ;
	rdfs:range   pg:Role ;
	rdfs:label   "Has port with role" ;
	rdfs:comment """
Indicates that a group always has a port with a particular role.
""" .

pg:mayHaveRole a rdf:Property ;
	rdfs:domain  pg:Group ;
	rdfs:range   pg:Role ;
	rdfs:label   "May have port with role" ;
	rdfs:comment """
Indicates that a group may have a port with a particular role.
""" .

pg:sideChainOf a rdf:Property ;
	rdfs:domain  pg:Group , lv2:Port ;
	rdfs:range   pg:Group , lv2:Port ;
	rdfs:label   "Side-chain of" ;
	rdfs:comment """
Indicates that this port or group should be considered a "side chain" of
some other port or group.  The precise definition of "side chain" depends
on the plugin, but in general this group should be considered a modifier to
some other group, rather than an independent input itself.
""" .

pg:subGroupOf a rdf:Property ;
	rdfs:domain  pg:Group ;
	rdfs:range   pg:Group ;
	rdfs:label   "Sub-group of" ;
	rdfs:comment """
Indicates that this group is a child of another group.  This property has
no meaning with respect to plugin execution, but the host may find this
information useful (e.g. to provide a compact user interface).  Note that
all groups on a plugin MUST have a unique symbol with respect to the plugin
as documented for pg:Group, i.e. sub-groups must have a unique symbol among
all groups and ports on the plugin.
""" .

pg:source a rdf:Property ;
	rdfs:domain  pg:Group , lv2:Port ;
	rdfs:range   pg:Group , lv2:Port ;
	rdfs:label   "Source group" ;
	rdfs:comment """
Indicates that this port or group should be considered the "result" of
some other port or group.  This property only makes sense on groups with
outputs when the source is a group with inputs.  This can be used to convey
a relationship between corresponding input and output groups with different
types, e.g.  a mono->stereo plugin.
""" .

pg:mainGroup a rdf:Property ;
	rdfs:domain  lv2:Plugin ;
	rdfs:range   pg:Group ;
	rdfs:label   "Main port group" ;
	rdfs:comment """
Indicates that this group should be considered the "main" inputs/outputs of
the plugin, e.g. it probably makes sense to just connect main groups and set
some controls.  A plugin MUST NOT have more than one :mainGroup property.
High-level hosts that simply want to insert an plugin in a given stream
should use this property to determine where the plugin 'fits'.
""" .

pg:inGroup a rdf:Property ;
	rdfs:domain  lv2:Port ;
	rdfs:range   pg:Group ;
	rdfs:label   "In port group" ;
	rdfs:comment """
Indicates that this port is a part of a group of ports on the plugin.
Ports that have a meaningful "role" that may be useful to hosts SHOULD also
have a :role property, otherwise ports in the group have no meaningful order.
""" .

pg:Role a rdfs:Class ;
	rdfs:label   "Port role" ;
	rdfs:comment """
The role of a port with respect to its plugin or group.  If the port is a
member of a group (has an :inGroup property) the role is relevant with respect
to that group.  Otherwise the role is relevant with respect to the plugin.
""" .

pg:role a rdf:Property ;
	rdfs:range   pg:Role ;
	rdfs:label   "Role" ;
	rdfs:comment """
Indicates that this port has a particular role with respect to its enclosing
plugin or group (whichever is smaller).  A port may have several roles if it
makes sense to do so (though some Role or Group definition may forbid this).
""" .


# Discrete

pg:DiscreteGroup a rdfs:Class ;
	rdfs:subClassOf pg:Group ;
	rdfs:comment """
"Discrete" channel configurations.  These groups are divided into channels
where each represents a particular speaker location.  The position of sound
in one of these groups depends on a particular speaker configuration.
""" .

pg:leftChannel        a pg:Role ; rdfs:label "Left" .
pg:rightChannel       a pg:Role ; rdfs:label "Right" .
pg:centerChannel      a pg:Role ; rdfs:label "Center" .
pg:sideChannel        a pg:Role ; rdfs:label "Side" .
pg:centerLeftChannel  a pg:Role ; rdfs:label "Center Left" .
pg:centerRightChannel a pg:Role ; rdfs:label "Center Right" .
pg:sideLeftChannel    a pg:Role ; rdfs:label "Side Left" .
pg:sideRightChannel   a pg:Role ; rdfs:label "Side Right" .
pg:rearLeftChannel    a pg:Role ; rdfs:label "Rear Left" .
pg:rearRightChannel   a pg:Role ; rdfs:label "Rear Right" .
pg:rearCenterChannel  a pg:Role ; rdfs:label "Rear Center" .
pg:lfeChannel         a pg:Role ; rdfs:label "Sub (LFE)" .

pg:MonoGroup a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "Mono" ;
	pg:hasRole [ pg:index 0; pg:role pg:centerChannel ] .

pg:StereoGroup a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "Stereo" ;
	pg:hasRole [ pg:index 0; pg:role pg:leftChannel ] ;
	pg:hasRole [ pg:index 1; pg:role pg:rightChannel ] .

pg:MidSideGroup a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "Mid-Side Stereo" ;
	pg:hasRole [ pg:index 0; pg:role pg:centerChannel ] ;
	pg:hasRole [ pg:index 1; pg:role pg:sideChannel ] .

pg:ThreePointZeroGroup a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "3.0 Surround" ;
	pg:hasRole [ pg:index 0; pg:role pg:leftChannel ] ;
	pg:hasRole [ pg:index 1; pg:role pg:rightChannel ] ;
	pg:hasRole [ pg:index 2; pg:role pg:rearCenterChannel ] .

pg:FourPointZeroGroup a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "4.0 Surround (Quadraphonic)" ;
	pg:hasRole [ pg:index 0; pg:role pg:leftChannel ] ;
	pg:hasRole [ pg:index 1; pg:role pg:centerChannel ] ;
	pg:hasRole [ pg:index 2; pg:role pg:rightChannel ] ;
	pg:hasRole [ pg:index 3; pg:role pg:rearCenterChannel ] .

pg:FivePointZeroGroup a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "5.0 Surround (3-2 stereo)" ;
	pg:hasRole [ pg:index 0; pg:role pg:leftChannel ] ;
	pg:hasRole [ pg:index 1; pg:role pg:centerChannel ] ;
	pg:hasRole [ pg:index 2; pg:role pg:rightChannel ] ;
	pg:hasRole [ pg:index 3; pg:role pg:rearLeftChannel ] ;
	pg:hasRole [ pg:index 4; pg:role pg:rearRightChannel ] .

pg:FivePointOneGroup a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "5.1 Surround (3-2 stereo)" ;
	pg:hasRole [ pg:index 0; pg:role pg:leftChannel ] ;
	pg:hasRole [ pg:index 1; pg:role pg:centerChannel ] ;
	pg:hasRole [ pg:index 2; pg:role pg:rightChannel ] ;
	pg:hasRole [ pg:index 3; pg:role pg:rearLeftChannel ] ;
	pg:hasRole [ pg:index 4; pg:role pg:rearRightChannel ] ;
	pg:hasRole [ pg:index 5; pg:role pg:lfeChannel ] .

pg:SixPointOneGroup a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "6.1 Surround" ;
	pg:hasRole [ pg:index 0; pg:role pg:leftChannel ] ;
	pg:hasRole [ pg:index 1; pg:role pg:centerChannel ] ;
	pg:hasRole [ pg:index 2; pg:role pg:rightChannel ] ;
	pg:hasRole [ pg:index 3; pg:role pg:sideLeftChannel ] ;
	pg:hasRole [ pg:index 4; pg:role pg:sideRightChannel ] ;
	pg:hasRole [ pg:index 5; pg:role pg:rearCenterChannel ] ;
	pg:hasRole [ pg:index 6; pg:role pg:lfeChannel ] .

pg:SevenPointOneGroup a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "7.1 Surround" ;
	pg:hasRole [ pg:index 0; pg:role pg:leftChannel ] ;
	pg:hasRole [ pg:index 1; pg:role pg:centerChannel ] ;
	pg:hasRole [ pg:index 2; pg:role pg:rightChannel ] ;
	pg:hasRole [ pg:index 3; pg:role pg:sideLeftChannel ] ;
	pg:hasRole [ pg:index 4; pg:role pg:sideRightChannel ] ;
	pg:hasRole [ pg:index 5; pg:role pg:rearLeftChannel ] ;
	pg:hasRole [ pg:index 6; pg:role pg:rearRightChannel ] ;
	pg:hasRole [ pg:index 7; pg:role pg:lfeChannel ] .

pg:SevenPointOneWideGroup a rdfs:Class ;
	rdfs:subClassOf pg:DiscreteGroup ;
	rdfs:label "7.1 Surround (Wide)" ;
	pg:hasRole [ pg:index 0; pg:role pg:leftChannel ] ;
	pg:hasRole [ pg:index 1; pg:role pg:centerLeftChannel ] ;
	pg:hasRole [ pg:index 2; pg:role pg:centerChannel ] ;
	pg:hasRole [ pg:index 3; pg:role pg:centerRightChannel ] ;
	pg:hasRole [ pg:index 4; pg:role pg:rightChannel ] ;
	pg:hasRole [ pg:index 5; pg:role pg:rearLeftChannel ] ;
	pg:hasRole [ pg:index 6; pg:role pg:rearRightChannel ] ;
	pg:hasRole [ pg:index 7; pg:role pg:lfeChannel ] .


# Ambisonic

pg:AmbisonicGroup a rdfs:Class ;
	rdfs:subClassOf pg:Group ;
	rdfs:comment """
"Ambisonic" channel configurations.  These groups are divided into channels
which together represent a position in an abstract n-dimensional space.
The position of sound in one of these groups does not depend on a particular
speaker configuration; a decoder can be used to convert an ambisonic stream
for any speaker configuration.
""" .

#amb:ACN0  a pg:Role ; rdfs:label "ACN 0 (W)" .
#amb:ACN1  a pg:Role ; rdfs:label "ACN 1 (Y)" .
#amb:ACN2  a pg:Role ; rdfs:label "ACN 2 (Z)" .
#amb:ACN3  a pg:Role ; rdfs:label "ACN 3 (X)" .
#amb:ACN4  a pg:Role ; rdfs:label "ACN 4 (V)" .
#amb:ACN5  a pg:Role ; rdfs:label "ACN 5 (T)" .
#amb:ACN6  a pg:Role ; rdfs:label "ACN 6 (R)" .
#amb:ACN7  a pg:Role ; rdfs:label "ACN 7 (S)" .
#amb:ACN8  a pg:Role ; rdfs:label "ACN 8 (U)" .
#amb:ACN9  a pg:Role ; rdfs:label "ACN 9 (Q)" .
#amb:ACN10 a pg:Role ; rdfs:label "ACN 10 (O)" .
#amb:ACN11 a pg:Role ; rdfs:label "ACN 11 (M)" .
#amb:ACN12 a pg:Role ; rdfs:label "ACN 12 (K)" .
#amb:ACN13 a pg:Role ; rdfs:label "ACN 13 (L)" .
#amb:ACN14 a pg:Role ; rdfs:label "ACN 14 (N)" .
#amb:ACN15 a pg:Role ; rdfs:label "ACN 15 (P)" .

pg:AmbisonicBH1P0Group a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 1 and peripheral order 0." ;
	pg:hasRole [ pg:index 0; pg:role amb:ACN0 ] ;
	pg:hasRole [ pg:index 1; pg:role amb:ACN1 ] ;
	pg:hasRole [ pg:index 2; pg:role amb:ACN3 ] .

pg:AmbisonicBH1P1Group a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 1 and peripheral order 1." ;
	pg:hasRole [ pg:index 0; pg:role amb:ACN0 ] ;
	pg:hasRole [ pg:index 1; pg:role amb:ACN1 ] ;
	pg:hasRole [ pg:index 2; pg:role amb:ACN2 ] ;
	pg:hasRole [ pg:index 3; pg:role amb:ACN3 ] .

pg:AmbisonicBH2P0Group a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 2 and peripheral order 0." ;
	pg:hasRole [ pg:index 0; pg:role amb:ACN0 ] ;
	pg:hasRole [ pg:index 1; pg:role amb:ACN1 ] ;
	pg:hasRole [ pg:index 2; pg:role amb:ACN3 ] ;
	pg:hasRole [ pg:index 3; pg:role amb:ACN4 ] ;
	pg:hasRole [ pg:index 4; pg:role amb:ACN8 ] .

pg:AmbisonicBH2P1Group a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 2 and peripheral order 1." ;
	pg:hasRole [ pg:index 0; pg:role amb:ACN0 ] ;
	pg:hasRole [ pg:index 1; pg:role amb:ACN1 ] ;
	pg:hasRole [ pg:index 2; pg:role amb:ACN2 ] ;
	pg:hasRole [ pg:index 3; pg:role amb:ACN3 ] ;
	pg:hasRole [ pg:index 4; pg:role amb:ACN4 ] ;
	pg:hasRole [ pg:index 5; pg:role amb:ACN8 ] .

pg:AmbisonicBH2P2Group a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 2 and peripheral order 2." ;
	pg:hasRole [ pg:index 0; pg:role amb:ACN0 ] ;
	pg:hasRole [ pg:index 1; pg:role amb:ACN1 ] ;
	pg:hasRole [ pg:index 2; pg:role amb:ACN2 ] ;
	pg:hasRole [ pg:index 3; pg:role amb:ACN3 ] ;
	pg:hasRole [ pg:index 4; pg:role amb:ACN4 ] ;
	pg:hasRole [ pg:index 5; pg:role amb:ACN5 ] ;
	pg:hasRole [ pg:index 6; pg:role amb:ACN6 ] ;
	pg:hasRole [ pg:index 7; pg:role amb:ACN7 ] ;
	pg:hasRole [ pg:index 8; pg:role amb:ACN8 ] .

pg:AmbisonicBH3P0Group a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 3 and peripheral order 0." ;
	pg:hasRole [ pg:index 0; pg:role amb:ACN0 ] ;
	pg:hasRole [ pg:index 1; pg:role amb:ACN1 ] ;
	pg:hasRole [ pg:index 2; pg:role amb:ACN3 ] ;
	pg:hasRole [ pg:index 3; pg:role amb:ACN4 ] ;
	pg:hasRole [ pg:index 4; pg:role amb:ACN8 ] ;
	pg:hasRole [ pg:index 5; pg:role amb:ACN9 ] ;
	pg:hasRole [ pg:index 6; pg:role amb:ACN15 ] .

pg:AmbisonicBH3P1Group a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 3 and peripheral order 1." ;
	pg:hasRole [ pg:index 0; pg:role amb:ACN0 ] ;
	pg:hasRole [ pg:index 1; pg:role amb:ACN1 ] ;
	pg:hasRole [ pg:index 2; pg:role amb:ACN2 ] ;
	pg:hasRole [ pg:index 3; pg:role amb:ACN3 ] ;
	pg:hasRole [ pg:index 4; pg:role amb:ACN4 ] ;
	pg:hasRole [ pg:index 5; pg:role amb:ACN8 ] ;
	pg:hasRole [ pg:index 6; pg:role amb:ACN9 ] ;
	pg:hasRole [ pg:index 7; pg:role amb:ACN15 ] .

pg:AmbisonicBH3P2Group a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 3 and peripheral order 2." ;
	pg:hasRole [ pg:index 0;  pg:role amb:ACN0 ] ;
	pg:hasRole [ pg:index 1;  pg:role amb:ACN1 ] ;
	pg:hasRole [ pg:index 2;  pg:role amb:ACN2 ] ;
	pg:hasRole [ pg:index 3;  pg:role amb:ACN3 ] ;
	pg:hasRole [ pg:index 4;  pg:role amb:ACN4 ] ;
	pg:hasRole [ pg:index 5;  pg:role amb:ACN5 ] ;
	pg:hasRole [ pg:index 6;  pg:role amb:ACN6 ] ;
	pg:hasRole [ pg:index 7;  pg:role amb:ACN7 ] ;
	pg:hasRole [ pg:index 8;  pg:role amb:ACN8 ] ;
	pg:hasRole [ pg:index 9;  pg:role amb:ACN9 ] ;
	pg:hasRole [ pg:index 10; pg:role amb:ACN15 ] .

pg:AmbisonicBH3P3Group a rdfs:Class ;
	rdfs:subClassOf pg:AmbisonicGroup ;
	rdfs:label "Ambisonic B stream of horizontal order 3 and peripheral order 3." ;
	pg:hasRole [ pg:index 0;  pg:role amb:ACN0 ] ;
	pg:hasRole [ pg:index 1;  pg:role amb:ACN1 ] ;
	pg:hasRole [ pg:index 2;  pg:role amb:ACN2 ] ;
	pg:hasRole [ pg:index 3;  pg:role amb:ACN3 ] ;
	pg:hasRole [ pg:index 4;  pg:role amb:ACN4 ] ;
	pg:hasRole [ pg:index 5;  pg:role amb:ACN5 ] ;
	pg:hasRole [ pg:index 6;  pg:role amb:ACN6 ] ;
	pg:hasRole [ pg:index 7;  pg:role amb:ACN7 ] ;
	pg:hasRole [ pg:index 8;  pg:role amb:ACN8 ] ;
	pg:hasRole [ pg:index 9;  pg:role amb:ACN9 ] ;
	pg:hasRole [ pg:index 10; pg:role amb:ACN10 ] ;
	pg:hasRole [ pg:index 11; pg:role amb:ACN11 ] ;
	pg:hasRole [ pg:index 12; pg:role amb:ACN12 ] ;
	pg:hasRole [ pg:index 13; pg:role amb:ACN13 ] ;
	pg:hasRole [ pg:index 14; pg:role amb:ACN14 ] ;
	pg:hasRole [ pg:index 15; pg:role amb:ACN15 ] .


# Controls

pg:ControlGroup a rdfs:Class ;
	rdfs:subClassOf pg:Group ;
	rdfs:comment """
A group representing a set of associated controls.
""" .

pg:amplitude          a pg:Role ; rdfs:label "Amplitude" .
pg:attack             a pg:Role ; rdfs:label "Attack" .
pg:cutoffFrequency    a pg:Role ; rdfs:label "Cutoff Frequency" .
pg:decay              a pg:Role ; rdfs:label "Decay" .
pg:delay              a pg:Role ; rdfs:label "Delay" .
pg:frequency          a pg:Role ; rdfs:label "Frequency" .
pg:hold               a pg:Role ; rdfs:label "Hold" .
pg:pulseWidth         a pg:Role ; rdfs:label "Pulse Width" .
pg:ratio              a pg:Role ; rdfs:label "Ratio" .
pg:release            a pg:Role ; rdfs:label "Release" .
pg:resonance          a pg:Role ; rdfs:label "Resonance" .
pg:sustain            a pg:Role ; rdfs:label "Sustain" .
pg:threshold          a pg:Role ; rdfs:label "Threshold" .
pg:waveform           a pg:Role ; rdfs:label "Waveform" .

pg:EnvelopeControlGroup a rdfs:Class ;
	rdfs:subClassOf pg:ControlGroup ;
	rdfs:label "Controls for a DAHDSR envelope." ;
	pg:mayHaveRole pg:delay ;
	pg:mayHaveRole pg:attack ;
	pg:mayHaveRole pg:hold ;
	pg:mayHaveRole pg:decay ;
	pg:mayHaveRole pg:sustain ;
	pg:mayHaveRole pg:release .

pg:OscillatorControlGroup a rdfs:Class ;
	rdfs:subClassOf pg:ControlGroup ;
	rdfs:label "Controls for an oscillator." ;
	pg:mayHaveRole pg:frequency ;
	pg:mayHaveRole pg:amplitude ;
	pg:mayHaveRole pg:waveform ;
	pg:mayHaveRole pg:pulseWidth .

pg:FilterControlGroup a rdfs:Class ;
	rdfs:subClassOf pg:ControlGroup ;
	rdfs:label "Controls for a filter." ;
	pg:mayHaveRole pg:cutoffFrequency ;
	pg:mayHaveRole pg:resonance .

pg:CompressorControlGroup a rdfs:Class ;
	rdfs:subClassOf pg:ControlGroup ;
	rdfs:label "Controls for a compressor." ;
	pg:mayHaveRole pg:threshold ;
	pg:mayHaveRole pg:ratio .