Answer:
African-American music in the 1960's that combined the beat of rhythm and blues and the exuberance of gospel was known as blues.
Explanation:
The key signature allows the composer to use less accidentals which makes the music less cluttered. Just like the other person who answered this said when a score with multiple instruments is written it is almost always all in the same key to keep the music organized (their answer is better)
Answer:
Aperture and White balance
