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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | class:: Plambda
summary:: create a scope (namespace) for enclosed streams
related:: Classes/Penvir, Classes/Pkey
categories:: Streams-Patterns-Events>Patterns>Data Sharing
ClassMethods::
method::new
argument::pattern
an event stream.
argument::scope
an event with default bindings (can be nil).
Examples::
code::
// Plet, Pget and Plambda.
// Plet(key, stream, return)
// Pget(key, default, repeats)
(
SynthDef(\sine,
{ arg out=0, freq=440, sustain=0.05, pan=0, amp=0.1;
var env;
env = EnvGen.kr(Env.perc(Rand(0.001, 0.02), sustain, AmpCompA.kr(freq)*amp), doneAction:2);
Out.ar(out, Pan2.ar(SinOsc.ar(freq), pan, env))
}).add;
)
(
a = Plambda(
Pseq([
Pfindur(5,
Ppar([
Pbind(\note, Plet(\x, Prand([1, 5, 1, [10, 14]], inf)), \dur, 8/3, \pan, -1),
Pbind(\note, Plet(\y, Pseq([5, 3, 2, 0, [0, 5, 6, 9]], inf)), \dur, 0.5, \pan,1),
Pbind(\note, Pseq([Pget(\x), Pget(\y)], inf) + 12, \pan, 0, \dur, 2/3)
])
),
Pbind(\note, Pget(\x, 0, 6) + [0, 5], \dur, Pstutter(inf, Prand([2/3, 1/6])))
], inf).trace(\eventScope) // internally, the values are shared via \eventScope
);
b = Pbindf(a, \instrument, \sine, \legato, 0.1);
b.play
)
// this structure remains parallelizable
Ppar([b, Pbindf(b, \ctranspose, 24, \dur, Pkey(\dur) * 0.25)]).play;
::
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