It was very different type of art for the time that is why and it was very sad type of art it mean sad things
To give a warmer or more inviting tone, especially in a natural portrait.
Clarinet was added to the orchestra
Tertiary colors are the colors made by mixing a secondary and the primary colors.
Here are the list of the tertiary colors
= > yellow green
=> yellow orange
=> red orange
=> red violet
=> blue violet
=> blue green