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class:: Ppatmod
summary:: modify a given pattern before passing it into the stream
related:: Classes/Plazy
categories:: Streams-Patterns-Events>Patterns>Filter
ClassMethods::
method::new
argument::pattern
the pattern.
argument::func
A link::Classes/Function:: that modifies the enclosed pattern and embeds it in the stream.
argument::repeats
the number of repeats.
Examples::
code::
(
a = Ppatmod(
Pseq([0, 0, 0, 0],1),
{ arg pat, i;
var list;
list = pat.list;
pat.list = list.put(list.size.rand, 2);
}, inf);
x = a.asStream;
30.do({ x.next.postln });
)
//Ppatmod used to modify a pattern that produces a sequence of pitches:
(
SynthDef(\help_sinegrain,
{ arg out=0, freq=440, sustain=0.05;
var env;
env = EnvGen.kr(Env.perc(0.01, sustain, 0.2), doneAction: Done.freeSelf);
Out.ar(out, SinOsc.ar(freq, 0, env))
}).add;
)
(
a = Pn(
Ppatmod(
Pseq([0, 0, 0, 0],1),
{ arg pat, i;
var list;
list = pat.list;
pat.list = list.put(list.size.rand, 2);
}, 15),
inf).asStream;
Routine({
loop({
Synth(\help_sinegrain, [\freq, (a.next*5+77).midicps]);
0.13.wait;
})
}).play;
)
::
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