What is defined as how clear or sharp a particular image is? focus angle shot obscurity

I believe the correct answer is: focus.

The camera represents a light-tight box that is used to expose a photosensitive surface to light and in order to focus the light onto the surface, most cameras use a lens to direct the light. Focus is an optical device that consists of a curved material that allows light to pass through it and defines how clear or sharp a particular image would be.

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!