1@prefix dcs: <http://ontologi.es/doap-changeset#> .
2@prefix doap: <http://usefulinc.com/ns/doap#> .
3@prefix foaf: <http://xmlns.com/foaf/0.1/> .
4@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
5@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
6@prefix time: <http://lv2plug.in/ns/ext/time#> .
7
8<http://lv2plug.in/ns/ext/time>
9	a doap:Project ;
10	doap:name "LV2 Time" ;
11	doap:shortdesc "A vocabulary for describing musical time." ;
12	doap:created "2011-10-05" ;
13	doap:developer <http://drobilla.net/drobilla#me> ;
14	doap:release [
15		doap:revision "1.6" ;
16		doap:created "2019-02-03" ;
17		doap:file-release <http://lv2plug.in/spec/lv2-1.16.0.tar.bz2> ;
18		dcs:blame <http://drobilla.net/drobilla#me> ;
19		dcs:changeset [
20			dcs:item [
21				rdfs:label "Clarify time:beat origin."
22			]
23		]
24	] , [
25		doap:revision "1.4" ;
26		doap:created "2016-07-31" ;
27		doap:file-release <http://lv2plug.in/spec/lv2-1.14.0.tar.bz2> ;
28		dcs:blame <http://drobilla.net/drobilla#me> ;
29		dcs:changeset [
30			dcs:item [
31				rdfs:label "Define LV2_TIME_PREFIX."
32			]
33		]
34	] , [
35		doap:revision "1.2" ;
36		doap:created "2012-10-14" ;
37		doap:file-release <http://lv2plug.in/spec/lv2-1.2.0.tar.bz2> ;
38		dcs:blame <http://drobilla.net/drobilla#me> ;
39		dcs:changeset [
40			dcs:item [
41				rdfs:label "Use consistent label style."
42			]
43		]
44	] , [
45		doap:revision "1.0" ;
46		doap:created "2012-04-17" ;
47		doap:file-release <http://lv2plug.in/spec/lv2-1.0.0.tar.bz2> ;
48		dcs:blame <http://drobilla.net/drobilla#me> ;
49		dcs:changeset [
50			dcs:item [
51				rdfs:label "Initial release."
52			]
53		]
54	] ;
55	lv2:documentation """
56
57This is a vocabulary for describing a position in time and the speed of time
58passage, in both real and musical terms.
59
60In addition to real time (based on seconds), two units of time are used:
61_frames_ and _beats_.  A frame is a numbered quantum of time.  Frame time is
62related to real-time by the _frame rate_ or _sample rate_,
63time:framesPerSecond.  A beat is a single pulse of musical time.  Beat time is
64related to real-time by the _tempo_, time:beatsPerMinute.
65
66Musical time additionally has a _meter_ which describes passage of time in
67terms of musical _bars_.  A bar is a higher level grouping of beats.  The meter
68describes how many beats are in one bar.
69
70"""^^lv2:Markdown .
71
72time:Position
73	lv2:documentation """
74
75A point in time and/or the speed at which time is passing.  A position is both
76a point and a speed, which precisely defines a time within a timeline.
77
78"""^^lv2:Markdown .
79
80time:Rate
81	lv2:documentation """
82
83The rate of passage of time in terms of one unit with respect to another.
84
85"""^^lv2:Markdown .
86
87time:beat
88	lv2:documentation """
89
90This is not the beat within a bar like time:barBeat, but relative to the same
91origin as time:bar and monotonically increases unless the transport is
92repositioned.
93
94"""^^lv2:Markdown .
95
96time:beatUnit
97	lv2:documentation """
98
99Beat unit, the note value that counts as one beat.  This is the bottom number
100in a time signature: 2 for half note, 4 for quarter note, and so on.
101
102"""^^lv2:Markdown .
103
104time:speed
105	lv2:documentation """
106
107The rate of the progress of time as a fraction of normal speed.  For example, a
108rate of 0.0 is stopped, 1.0 is rolling at normal speed, 0.5 is rolling at half
109speed, -1.0 is reverse, and so on.
110
111"""^^lv2:Markdown .
112
113