2. How many complementary color pairs are there?

Seurat's optical mixture created greater fill in the blank.

Natural minor half steps between scale degrees 3 and 4; 7 and 8 harmonic minor half steps between scale degrees 2 and 3; 5 and 6 ascending melodic minor half steps between scale degrees 2 and 3; 5 and 6; 7 and 8 major half steps between scale degrees 2 and 3; 7 and 8

The degree to witch the surface of an object seems to have a particular feel is referred to as an object