Johann sebastian bach was most famous in his day as a performer on the:

He played the organ exceptionally well, best organist in town.

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.