[Chris85]

Originally Posted by yamadashun

I am sorry to say that after watching the live performances on a-nation, I am confirmed her NHK's SONG performance was vocally edited. Unless there's some miracle happening to her throat that night...

After watching SONGS for several times, I have no doubts that it IS indeed edited. She is pitch-perfect during five songs, which just isn't possible. She didn't go off-key even once! Even very trained and talented professional singers will make mistake at least once during 5 songs. They fixed her voice very gently and it also helped that she really did a good job vocally, that's why you can barely hear any artifacts from pitch-correction and she sounds very natural, but if you listen attentively you will hear those artifacts in Step by step and Evolution on those notes that were originally significantly off-key and even after they fixed them they sound a little bit weird. For example during last chorus of Step by Step when she is shaking hands with fans.

Originally Posted by kinix

If the show is edited, then I see no point of her singing the song twice during the recording as mentioned by some of the fans who went for the live.

The better she sings, the better she will sound after editing. That's why. Editing can't do miracles if a singer did a bad job.