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var arr = {	
	max: function(array) {
		return Math.max.apply(null, array);
	},
	
	min: function(array) {
		return Math.min.apply(null, array);
	},
	
	range: function(array) {

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// grok'd from TinyColor.js
// https://bgrins.github.io/TinyColor/docs/tinycolor.html
//



function rgbToHsl(r, g, b) {

    r = bound01(r, 255);
    g = bound01(g, 255);

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// PSEUDO CODE
// via Herman Tulleken
// http://devmag.org.za/2012/07/29/how-to-choose-colours-procedurally-algorithms/

maxJitter = 0.5; // any value between 0 and 1

for(int i = 0; i < n; i++)
   color[i] = gradient.GetColor(
      (i + 0.5 + (2 * Random.NextFloat() - 1) * maxJitter) * intervalSize);

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// PSEUDO CODE
// via Herman Tulleken
// http://devmag.org.za/2012/07/29/how-to-choose-colours-procedurally-algorithms/

offset = Random.NextFloat();

for (int i = 0; i < n; i++)
   color[i] = gradient.GetColor(offset + (0.618033988749895f * i) % 1);

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// grok'd from MIDI.js
// https://github.com/mudcube/MIDI.js

/*
	----------------------------------------------------------
	MIDI.Synesthesia : 0.3.1 : 2012-01-06
	----------------------------------------------------------
	Peacock:  “Instruments to perform color-music: Two centuries of technological experimentation,” Leonardo, 21 (1988), 397-406.
	Gerstner:  Karl Gerstner, The Forms of Color 1986
	Klein:  Colour-Music: The art of light, London: Crosby Lockwood and Son, 1927.

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// grok'd from TinyColor
// https://bgrins.github.io/TinyColor/

    toString: function(format) {
        var formatSet = !!format;
        format = format || this._format;

        var formattedString = false;

_applyModification: function(fn, args) {

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/* ----

 css custom properties to manipulate color
 MIT - 2017 - Soft Punch
 https://gist.github.com/softpunch/ 

 set initial "main" color via HSL values. 
 automatically calculate harmonies and variations of that color with pure css.

 harmonies are determined solely by hue. 

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:root {
  --bpm: 120;
 
  /* n4 = quarter note; t4 = quarter-note triplet; m4 = four measures */

  --n4: calc(60s / var(--bpm));  
  --n1: calc(var(--n4) * 4);
  --n2: calc(var(--n4) * 2);
  --n8: calc(var(--n4) / 2);
  --n16: calc(var(--n4) / 4);

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//  
// useful WebMIDI variables and functions
// 

//
// Chrome only; no iOS; does *not* incorporate shims
//


// Initialize WebMidi; create dropdown selector for output port

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//
// convenient variables and functions to schedule and control Web Audio; 
// also useful for controlling other systems using Web Audio's utilities
// 

window.AudioContext = window.AudioContext || window.webkitAudioContext;
var audioContext = new AudioContext();
var baseFreq = 440; // A4, Midi Note #69
var baseTempo = 120; // BPM
var audioOut = audioContext.destination;