private boolean addNumericId(String numericId) {
		int id=-1;
		try {
			id=Integer.parseInt(numericId);
		} catch (NumberFormatException e) {
			throw new RuntimeException("Internal error, regex failed parsing what should be a numeric genre ID="+numericId);
		}
		String genre=GenreList.idToValue.get(id);
		if(genre!=null) {
			this.add(genre);
			return true;
		} 
		return false;
	}