It's pronounced "ensemble" by the way. And, one way that a pianist would have a role would be by being in the background as an example and playing his part. He's going to play what he needs to play. The question does seem a little to vague, but truly, I would say simply, that the person who is playing it, just plays his part as they all make music sound good.
Answer:
True
Explanation:
Geometric implies strict patterns and straight lines, being planned out.
Free-flowing, informal, irregular imply something natural… aka organic.
Answer:
Byzantine mosaic of Emperor Justinian and his attendants at San Vitale, Ravenna
Explanation:
Mosaic is made of tesserae, main color is gold and white, so it's bright. Justinian I is shown with halo, which is a symbol of a saint.
Answer: Sure
Explanation: Whats wrong?