I don't think denoting a reason for "same" is necessary... due to all the other comparisons and rankings each song has already marked, it becomes judged just as well with a "same". Why? Because if it's the same as a song 100 points higher, it gets bumped up. If it's the same as a song 100 points lower, it gets bumped down. So the judge doesn't really need to say why. We don't rate any song, we just compare it to another.