What is the most important part of artwork called?

the answer is counterpoint.

counterpoint definition: "the art or technique of playing a melody or melodies in conjunction with another, according to fixed rules."

counterpoint is present in a lot of baroque music- such as bach (notably his wtc prelude and fugues) and scarlatti, but can also be found in music by mozart, beethoven. it can even be found in music as modern as john williams!

hey

he was  an italian composer who wrote 39 operas, as well as some sacred music, songs, chamber music and piano pieces.

hope this and i wish you the best of luck! : )