@prefix dcs: <http://ontologi.es/doap-changeset#> . @prefix doap: <http://usefulinc.com/ns/doap#> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix lv2: <http://lv2plug.in/ns/lv2core#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix time: <http://lv2plug.in/ns/ext/time#> . <http://lv2plug.in/ns/ext/time> a doap:Project ; doap:name "LV2 Time" ; doap:shortdesc "A vocabulary for describing musical time." ; doap:created "2011-10-05" ; doap:developer <http://drobilla.net/drobilla#me> ; doap:release [ doap:revision "1.6" ; doap:created "2019-02-03" ; doap:file-release <http://lv2plug.in/spec/lv2-1.16.0.tar.bz2> ; dcs:blame <http://drobilla.net/drobilla#me> ; dcs:changeset [ dcs:item [ rdfs:label "Clarify time:beat origin." ] ] ] , [ doap:revision "1.4" ; doap:created "2016-07-31" ; doap:file-release <http://lv2plug.in/spec/lv2-1.14.0.tar.bz2> ; dcs:blame <http://drobilla.net/drobilla#me> ; dcs:changeset [ dcs:item [ rdfs:label "Define LV2_TIME_PREFIX." ] ] ] , [ doap:revision "1.2" ; doap:created "2012-10-14" ; doap:file-release <http://lv2plug.in/spec/lv2-1.2.0.tar.bz2> ; dcs:blame <http://drobilla.net/drobilla#me> ; dcs:changeset [ dcs:item [ rdfs:label "Use consistent label style." ] ] ] , [ doap:revision "1.0" ; doap:created "2012-04-17" ; doap:file-release <http://lv2plug.in/spec/lv2-1.0.0.tar.bz2> ; dcs:blame <http://drobilla.net/drobilla#me> ; dcs:changeset [ dcs:item [ rdfs:label "Initial release." ] ] ] ; lv2:documentation """ This is a vocabulary for describing a position in time and the speed of time passage, in both real and musical terms. In addition to real time (based on seconds), two units of time are used: _frames_ and _beats_. A frame is a numbered quantum of time. Frame time is related to real-time by the _frame rate_ or _sample rate_, time:framesPerSecond. A beat is a single pulse of musical time. Beat time is related to real-time by the _tempo_, time:beatsPerMinute. Musical time additionally has a _meter_ which describes passage of time in terms of musical _bars_. A bar is a higher level grouping of beats. The meter describes how many beats are in one bar. """^^lv2:Markdown . time:Position lv2:documentation """ A point in time and/or the speed at which time is passing. A position is both a point and a speed, which precisely defines a time within a timeline. """^^lv2:Markdown . time:Rate lv2:documentation """ The rate of passage of time in terms of one unit with respect to another. """^^lv2:Markdown . time:beat lv2:documentation """ This is not the beat within a bar like time:barBeat, but relative to the same origin as time:bar and monotonically increases unless the transport is repositioned. """^^lv2:Markdown . time:beatUnit lv2:documentation """ Beat unit, the note value that counts as one beat. This is the bottom number in a time signature: 2 for half note, 4 for quarter note, and so on. """^^lv2:Markdown . time:speed lv2:documentation """ The rate of the progress of time as a fraction of normal speed. For example, a rate of 0.0 is stopped, 1.0 is rolling at normal speed, 0.5 is rolling at half speed, -1.0 is reverse, and so on. """^^lv2:Markdown .