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When I was adding to my playlist it came to my dismay that various songs are no longer available or have never came into play. Only very selective or older tracks were made, even if the artist or group had serveral hits and new singles or records out! Another thing is how some of the songs are in different groups, now you'll think a song by let's say Super Junior would be in their page, but alas no. Also it looks as if it hadn't even been updated, since them along with plently others have had high ratings. Lastly, at least add Japan and Korea to your top list, since after all they do produce music as well.