code: public JScoreElement getScoreElementAt(Point location) {
  		if (m_jTune!=null)
  			return m_jTune.getScoreElementAt(location);
  		else
  			return null;
  	}
docs: Returns the graphical score element fount at the given location.
  @param location A point in the score.
  @return The graphical score element found at the specified location.
  <TT>null</TT> is returned if no item is found at the given location.