And yet he was sweet, too.

She pouted in order to compel him to apologize.
"Come now," he said, after they had left the table, and conscious of the fact that his daughter was dissatisfied with him.

He must do something to placate her.

"Play me somethin' on the piano, somethin' nice." He preferred showy, clattery things which exhibited her skill and muscular ability and left him wondering how she did it.

That was what education was for--to enable her to play these very difficult things quickly and forcefully.