text: // made using https://www.espruino.com/Making+Music
  // Manic Monday tone by The Bangles
  
  var s = require('Storage').readJSON('setting.json', 1) || {};
  /* Normally we'd just use Bangle.beep which works automatically
  but because we're going lower level we need to account for the
  different pin. */
  if (s.beep == "vib") {
      function freq(f) {
          if (f === 0) digitalWrite(D13, 0);
          else analogWrite(D13, 0.1, {
              freq: f
          });
      }
  } else {
      function freq(f) {
          if (f === 0) digitalWrite(D18, 0);
          else analogWrite(D18, 0.5, {
              freq: f
          });
      }
  }
  
  
  freq(1000);
  freq(1500);
  freq(0);
  
  var pitches = {
      'G': 207.65,
      'a': 220.00,
      'b': 246.94,
      'c': 261.63,
      'd': 293.66,
      'e': 329.63,
      'f': 369.99,
      'g': 392.00,
      'A': 440.00,
      'B': 493.88,
      'C': 523.25,
      'D': 587.33,
      'E': 659.26,
      'F': 698.46
  };
  
  function step() {
      var ch = tune[pos];
      if (ch !== undefined) pos++;
      if (ch in pitches) freq(pitches[ch]);
      else freq(0); // off
  }
  
  var tune = "aggffefed";
  var pos = 0;
  
  setWatch(() => {
      pos = 0;
      var playing = setInterval(step, 500);
      if (playing === 0) clearInterval(playing);
  }, BTN1);
  
  E.showMessage('BTN1 to start', 'Manic Monday');