I did see it. I will never forget it. Horowitz (Jewish, an "assimilated" Jew, whatever that was) had a nasty cold and had a handkerchief to wipe his nose every so often.
He played and played then left the stage.
The audience clapped and clapped and clapped.
He returned to the stage and played a little more. The very last piece he played was an old, familiar and much loved Russian piece.
Women openly WEEPED. Men cried. There must have been cameras everywhere as we-who-watched saw all kinds of weeping faces.
During the piece, the camera then zoomed in on ONE 50-ish man, arms folded across his chest, with a gray suit, gray tie, gray hair and an unsmiling, stern, immovable face of chisled stone who sat and listened, apparently UNmoved.
Finally, he was moved. Towards the end of the piece ONE tear, just ONE lonely tear, slowly rolled down his face, his left cheek. His expression never changed. But that one lone tear, FORCED out of him, did me in and I still snerf when I think of it
All things aside, this is a very solid performance by Anna Fedorova.