in both tempera and oil painting, the surface of the wood or canvas is covered with a ground of powdered chalk or plaster and animal glue known as what?

Beethoven was a deaf man and couldnt hear. he became famous for his classical pieces. and there ye go.vivaldi was a true one hit wonder classical artist. hes known for his classical piece the four seasons. he was although wasn't as great as beethoven and yea 'ere ye a go.

Answerstrophic and through-composed;