Interestingly, since sound waves and light waves both vibrate at a certain frequency, physicists and psychologists have also studied the relationship between music tonality and color. Newton once determined that the seven colors red, orange, yellow, green, cyan, indigo, and violet are the same as the seven sounds C, D, bE, F, G, A, and bB. Russian composer and orchestrator Rimsky Korsakov once believed that tonality in music has color. For example, C major is white, G major is yellow, D major is golden yellow, A major is rose, E major is sapphire, B major is iron blue, F sharp major is gray green, and flat major is gray green. D major is gray-black, A flat major is purple, E flat major is dark black, and F major is green. Many other composers have offered similar or different views. Whether this metaphor is a scientific argument or a perceptual experience, the fact that different tones can give people different feelings of color or light and shade has long been recognized by people. We often hear the conversion or transfer of tonality in music. It is the effect of auditory color and light of tonality that often brings a sense of "sudden enlightenment", "falling into confusion" or "a new village with dark flowers and bright flowers". auditory sensation.