Let's break it down. The first part, Visual, is what you see when you look at something, color, arrangement, font, etc... The rhetoric part deals with the persuasion. In conclusion, it's what we see and how we act or think when we see it. It is one's ability to understand what an image is attempting to communicate.
Answer: chords and harmony
Explanation:
Coleman Hawkins used hormonic improvisation or vertical playing to create a name for himself. He brought a unique timbre, heavy dark way of playing with a sense of drama. He made the sax a real instrument and not a joke as sewn by people then.