What elements are needed in creating simple melodies?

please answer

"The essential elements of any melody are duration, pitch, and quality (timbre), texture, and loudness. Though the same melody may be recognizable when played with a wide variety of timbres and dynamics, the latter may still be an "element of linear ordering."

It is false

Explanation: Mr. Poole is the butler of Dr. Jekyll and he fetches Mr. Utterson

when he suspects Dr. Jekyll has been murdered.