Some pictures would have helped too, considering not everyone has iTunes, and it's an article about a visual feature. OP could have tried out the new Gist to di

Some pictures would have helped too, considering not everyone has iTunes, and it's an article about a visual feature. OP could have tried out the new Gist to display code too Edit: I meant pictures of the existing Apple implementation to see what they were on about. I see the pictures of their algorithm but it makes no sense to talk about the comparison when there's nothing to compare to