lib/chord.js
function (root, symbol, bass) {
  var name = root.name + symbol;
  var octave = bass ? bass.octave : root.octave;

  if (bass) name += '/' + bass.name;
  return new Chord(name, octave);
}
function (root, symbol, bass) {
  var name = root.name + symbol;
  var octave = bass ? bass.octave : root.octave;

  if (bass) name += '/' + bass.name;
  return new Chord(name, octave);
}
function ( root , symbol , bass ) { var name = root . name + symbol ; var octave = bass ? bass . octave : root . octave ; if ( bass ) name += '/' + bass . name ; return new Chord ( name , octave ) ; }
Make a chord object given root, symbol, bass
Make a chord object given root symbol bass