She rose from the piano seat and went to stand before him.

The baroness smiled and turned on the piano seat.

She rose at once from the piano seat.

She went back to the piano seat.

First, though, the five-year-old has to be helped up on to her piano seat by an adult.

I always put the day's mail in the piano seat and later, when he came in to polish the Steinway, he would retrieve it.