The paintings,and the lascaux caves
Positive space refers to the main point of focus, negative is the background
In the old days, when musicians got together to play, they used whatever instruments were around. If there were three lute players, a harp, and two flutes, then that's what they used. By the 1500s, the time known as the Renaissance, the word "consort" was used to mean a group of instrumentalists, and sometimes singers too, making music together or "in concert".
I'm sure it would be a. chaotic layouts and c. detailed pattern backgrounds