Ptuple 


superclass: ListPatterns


Ptuple(list, repeats)

list: an Array of Patterns

repeats: an Integer or inf

At each iteration returns a tuple (array) combining the output of each of the patterns in the list.  When any of the patterns returns a nil, Ptuple ends that 'repeat' and restarts all of the streams.


(

var a, b;

a = Pseq(#[1, 2, 3], inf);

b = Pseq(#[65, 76], inf);

c = Ptuple([a, a, b], inf);

x = c.asStream;

8.do({ x.next.postln; });

)



(

var a, b;

a = Pseq(#[1, 2, 3], inf);

b = Pseq(#[65, 76], 3); // stops after 3 cycles

c = Ptuple([a, a, b], 4); // stops after 4 cycles

x = c.asStream;

8.do({ x.next.postln; });

)



Ptuple used as a sequence of pitches (chords)



(

SynthDef("help-sinegrain", 

{ arg out=0, freq=440, sustain=0.05;

var env;

env = EnvGen.kr(Env.perc(0.01, sustain, 0.2), doneAction:2);

Out.ar(out, SinOsc.ar(freq, 0, env))

}).send(s);

)


(

a = Pseq(#[73, 71, 69, 69, 65, 64], inf);

b = Pseq(#[0, 0, 0, 4, 0, 3, 2]+64, inf);

c = Ptuple([a, b], inf);

x = c.asStream;

Routine({

var chord;

loop({

chord = x.next.midicps;

chord.do({ arg freq;

Synth("help-sinegrain", [\freq, freq]);

});

0.1.wait;

})

}).play;

)



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