What are the materials necessary to create an electromagnet?

  Large iron nail (approximately 3 inches in length)

   Thin coated copper wire.

   Dry cell batteries.

   Electric tape.

   Iron fillings, paper clips and other magnetic items.

Explanation:

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!