What are the four basic medium processes used in pencil drawing?​

Under Sketch
Erase
Shade
Detail
That’s what I’d say. Not sure what this means though.

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.