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.
Get closer to your subject to simplify the background
Crouch and photograph ur subject against the sky
Find reflections
Fill the frame with different colors
Plain backround
Fill with repeating diagonals or lines
Answer:
Critical Limit: the HACCP principal addressed by cooking the chicken to 165 degrees Fahrenheit.
Explanation: