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class:: Pseq
summary:: sequentially embed values in a list
related:: Classes/Pser
categories:: Streams-Patterns-Events>Patterns>List
description::
Cycles over a list of values. The repeats variable gives the number of times to repeat the entire list.
Examples::
code::
(
var a, b;
a = Pseq([1, 2, 3], 2); // repeat twice
b = a.asStream;
7.do({ b.next.postln; });
)
::
Pseq also has an offset argument which gives a starting offset into the list.
code::
(
var a, b;
a = Pseq([1, 2, 3, 4], 3, 2); // repeat 3, offset 2
b = a.asStream;
13.do({ b.next.postln; });
)
::
You can pass a function for the repeats variable that gets evaluated when the stream is created.
code::
(
var a, b;
a = Pseq([1, 2], { rrand(1, 3) }); // repeat 1,2, or 3 times
b = a.asStream;
7.do({ b.next.postln; });
)
::
If you specify the value inf for the repeats variable, then it will repeat indefinitely.
code::
(
var a, b;
a = Pseq([1, 2, 3], inf); // infinite repeat
b = a.asStream;
10.do({ b.next.postln; });
)
::
Pseq used as a sequence of pitches:
code::
(
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 = Pseq(#[60, 61, 63, 65, 72], inf).asStream;
Routine({
loop({
Synth(\help_sinegrain, [\freq, a.next.midicps]);
0.2.wait;
})
}).play;
)
::
|
