code: protected JNote createAnchorNote(Note note, Point2D base, ScoreMetrics metrics) {
  //		JNote jNote = new JNote(note, base, metrics);
  		JNote jNote = new JChordNote(note, getClef(), base, metrics);
  		//note.set
  		return jNote;
  	}
docs: The anchor of the chord is the one that present the rhytm (the highest one
  in case of stem up, the lowest one in case of stem down)