Yes you just did.. haha!! but yeah you can 'She did that beautifully'.
The rules are beautifully simple
The blanket was beautifully embroidered.
The crescent moon shone beautifully.
The food was cooked beautifully in the restaurant. This is the sentence using the word cooked.
This flower's phyllotaxy is beautifully whorled.
The string quintet played beautifully all evening.
Her eloquence fit beautifully in a sentence. The nightingale sang beautifully.
That's a very beautifully written formal invitation.
He was acting so beautifully like as if he was an angel.
"Beautifully" is an adjective and can be used to describe something. Examples of such are:"It was all beautifully done." & "She sang her piece beautifully."Placement in the sentence is up to you, of course, as long as it's used as an adjective.
Yes, the sentence is correct. It compares the singing abilities of two individuals, indicating that he sings more beautifully than she does.
He played the saxophone beautifully during the jazz concert.