code: public NoteAbstract getLastNote() {
  		if (lastNote == null) {
  			for (int i = super.size() - 1; i >= 0; i--) {
  				if (super.elementAt(i) instanceof NoteAbstract) {
  					lastNote = (NoteAbstract) super.elementAt(i);
  					break;
  				}
  			}
  		}
  		return lastNote;
  	}
docs: Returns the last note that has been added to this score.
  
  @return The last note that has been added to this score. <TT>null</TT>
  if no note in this score.