An outline of something, especially a person's face, as seen from one side is known as what?

especially a human head or face represented or seen in a side view” or “an outline seen or represented in sharp relief.” To profile someone, similarly, can mean to give account of a person's life and character.

answer; (binary). i believe this is the correct answer;

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!