Pavaroh


superclass: FilterPattern


basic classical indian scale pattern 

allowing to apply an ascending scale (aroh) and a descending scale (avaroh)


Pavaroh(keypattern, aroh, avaroh, stepsPerOctave)



note that no special pakads (movements) or vakras (twists) are applied.


the pakad is often a natural consequence of the notes of arohana / avarohana 

(ascending and descending structures). This is the purpose of this pattern



(

Pbind(\note, Pavaroh(

Pseq([1, 2, 3, 2, 5, 4, 3, 4, 2, 1], 2),

#[0, 2, 3, 6, 7, 9],

#[0, 1, 3, 7, 8, 11]

),

\dur, 0.25

).play;

)



//___indian video game (1)

(

SynthDef("ivg", { arg out, freq=900, pan;

var trig, snd;

               trig = Impulse.kr(LFClipNoise.kr(4, 3, LFClipNoise.kr(0.2, 2, 7)));

              snd = RLPF.ar(

                        SinOsc.ar(freq, 0, Decay.kr(trig, 1.8)).distort

                , 554, 0.3) 

                * 0.1;

              Out.ar(out, Pan2.ar(snd, pan))

              

 }).send(s);

)


(

        var aroh, avaroh, synth, str, pat;

        

        //gandhari raga.  vadi: dha (7) samvadi: ga (3)

        

        aroh = #[0, 2, 5, 7, 10];

        avaroh =  #[0, 1, 3, 5, 7, 9, 10];

        

        synth = Synth.head(s, \ivg);

        pat = Prand([0, 2, 3, 4, 2, 1, 0, -1, -2], inf);

        str = Pavaroh(pat, aroh, avaroh).asStream;

        Routine({

        

        loop({

        synth.set(\freq, midicps(str.next + 60) );

        rrand([0.1,1.0].choose, 0.5).wait;

        });

        

       }).play;

 

)







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