Complementary colours are colours that are combined to make a grayscale off colours
A complementary pair is when you combine colours that are opposite of each other like red and green, or yellow and purple etc.
When you put two of these colours together they cancel each other out which leads to that grayscale of colours like grey or even brown
The first four concertos are designated Le quattro stagioni, each being named after a season. Each one is in three movements, with a slow movement between two faster ones (and these movements likewise vary in tempo amid the seasons as a whole).
