91 lines
2 KiB
Text
91 lines
2 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{Psym}
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use a pattern of symbols to embed Pdefs@section{categories}
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Libraries>JITLib>Patterns, Live Coding
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@section{related}
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Classes/Pdef
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@section{description}
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for non-event patterns see link::Classes/Pnsym::. Overview: link::Overviews/JITLib::.
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@section{ClassMethods}
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@section{method}
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new
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@section{argument}
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pattern
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a pattern that returns symbols or characters. Arrays are converted to parallel patterns ( link::Classes/Ppar:: ).
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@section{argument}
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dict
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the dictionary to be used for lookup. By default, this is
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@racketblock[Pdef.all::, so one can embed Pdefs by name.
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]
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@section{InstanceMethods}
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@section{method}
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dict
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set the dictionary to be used.
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@section{Examples}
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@racketblock[
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(
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// load a synthdef
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s.boot;
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SynthDef(\gpdef,
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{ |out=0, freq=440, sustain=0.05, amp=0.1, pan|
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var env;
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env = EnvGen.kr(Env.perc(0.01, sustain), doneAction: Done.freeSelf) * amp;
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Out.ar(out, Pan2.ar(SinOsc.ar(freq, 0, env), pan))
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}).add;
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)
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Pdef(\x, Pbind(\dur, Pn(0.25, 3), \instrument, \gpdef));
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Pdef(\y, Pchain(Pbind(\degree, Prand([5, 9, 0], inf), \legato, Pseq([0.3, 2.2], inf)), Pdef(\x)));
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Pdef(\z, Pchain(Pbind(\degree, Pseq([0, 2, 5, 7, 8, 9], 1)), Pn(Pdef(\y))));
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Pdef(\play, Psym(Pseq([\x, \x, Prand([\x, \y]), \z, \y], inf).trace)).play;
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// change root pattern:
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Pdef(\x, Pbind(\dur, Pn(0.125, 2), \instrument, \gpdef));
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Pdef(\x, Pbind(\dur, Pn(0.125, 3), \instrument, \gpdef, \ctranspose, 2));
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Pdef(\x, Pbind(\dur, Pn(0.125, 2), \instrument, \gpdef, \ctranspose, 0));
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// change sequence:
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Pdef(\play, Psym(Prand([Pseq([\x, \y], 5), Pseq([\z, \y], 5)], inf).trace)).play;
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// use a sequence of characters:
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Pdef(\play, Psym(Pseq("xxyxxzz", inf).trace)).play;
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// play in parallel:
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(
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Pdef(\play, Psym(
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Prand([
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Pseq([[\x, \y], \z], 5),
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Pseq([[\z, \y], \x, \x, \y])
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]
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, inf).trace)
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).play
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);
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Pdef(\z, Pchain(Pbind(\mtranspose, -5), Pdef(\y)));
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Pdef(\y, Pchain(Pbind(\degree, Pseq([4, 3, 4, 2, 4, 1, 4, 0], 1)), Pdef(\x)));
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Pdef(\play).stop; // stop it
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Pdef.clear; // clear all
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::
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]
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