53 lines
1.3 KiB
Text
53 lines
1.3 KiB
Text
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class:: Plambda
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summary:: create a scope (namespace) for enclosed streams
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related:: Classes/Penvir, Classes/Pkey
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categories:: Streams-Patterns-Events>Patterns>Data Sharing
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ClassMethods::
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method::new
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argument::pattern
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an event stream.
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argument::scope
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an event with default bindings (can be nil).
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Examples::
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code::
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// Plet, Pget and Plambda.
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// Plet(key, stream, return)
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// Pget(key, default, repeats)
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(
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SynthDef(\sine,
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{ arg out=0, freq=440, sustain=0.05, pan=0, amp=0.1;
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var env;
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env = EnvGen.kr(Env.perc(Rand(0.001, 0.02), sustain, AmpCompA.kr(freq)*amp), doneAction: Done.freeSelf);
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Out.ar(out, Pan2.ar(SinOsc.ar(freq), pan, env))
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}).add;
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)
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(
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a = Plambda(
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Pseq([
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Pfindur(5,
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Ppar([
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Pbind(\note, Plet(\x, Prand([1, 5, 1, [10, 14]], inf)), \dur, 8/3, \pan, -1),
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Pbind(\note, Plet(\y, Pseq([5, 3, 2, 0, [0, 5, 6, 9]], inf)), \dur, 0.5, \pan,1),
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Pbind(\note, Pseq([Pget(\x), Pget(\y)], inf) + 12, \pan, 0, \dur, 2/3)
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])
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),
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Pbind(\note, Pget(\x, 0, 6) + [0, 5], \dur, Pstutter(inf, Prand([2/3, 1/6])))
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], inf).trace(\eventScope) // internally, the values are shared via \eventScope
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);
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b = Pbindf(a, \instrument, \sine, \legato, 0.1);
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b.play
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)
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// this structure remains parallelizable
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Ppar([b, Pbindf(b, \ctranspose, 24, \dur, Pkey(\dur) * 0.25)]).play;
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::
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