0604sequencer2

// remember to add the sound library : p5.sound

var osc; // this is a variable which we will use for an oscillator

var env; // this is a variable which we wlll use for the envelope

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var sequence = [60, 63, 65, 62, 60, 67, 68, 70, 72, 60, 58, 62, 74, 63];

var s = 0;

var speed = 6;

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var fg = 255;

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function setup() {

  createCanvas(windowWidth, windowHeight);

  background(255);

  // take 0.1 seconds to get to level 1, then 0.5 seconds to get to level 0

  env = new p5.Envelope(0.01, 1, 0.3, 0); 

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  osc = new p5.Oscillator(); // make an oscillator

  osc.setType('sine'); // options are 'sine', 'sawtooth', 'triangle', 'square'

  osc.start(); // start it

  osc.amp(0);

  textSize(60);

}

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function draw() {

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  background(255-fg);

  stroke(fg);

  fill(fg);

  text(frameCount + ": " + s + ": " + sequence[s], width/2, height/2);

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  if(frameCount%speed==0) {

    playit(sequence[s]); // play a note

    s = (s+1) % sequence.length; // increment which note

    fg = 255-fg; // flip the color

  }

}

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function mouseClicked()

{

  //playit();

}

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function playit(f)

{

  osc.freq(midiToFreq(f)); // frequency to the argument

  env.play(osc);

}

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