As the fingers reach the keys, sound and touch seem to fuse into one. The keyboard has ceased to be a mere function for hammers to strike strings, and has become a precious horizontal artifact to caress. This is music of the piano as much as for the piano.
If it happened (although it did not happen), it would not have been wrong. If it happened (it may have happened; he did not do it, but it may have happened), it was only to be expected. These things happen. (He did not do it.)