What is the difference between tint and shade in color?

As nouns the difference between tint and shade is that tint is a slight coloring while shade is (uncountable) darkness where light, particularly sunlight, is blocked. is that tint is (intransitive) to shade, to color while shade is to shield from light.

Tint is the addition of white to a color to add highlights, and shade is adding black to a color to add shade.

a chromatic scale uses the twelve tones of the octave, while a regular scale only uses eight, or seven different notes (as the first note is played twice)