What color represents each note?
Scientists equated audible frequencies (hertz) with color wavelength (nanometers/angstroms). There are 21 different colors used in cNOTEs because there are 21 different notes: A, B, C, D, E, F, G plus each note’s respective sharp and flat. A “C” note is Green, a “D” note is Blue, an “E” note is violet, etc. The notes move around the key circle just as colors change around the color wheel.
