Correlation of synesthesia and common recognition concerning music and color

This work discuss that a common recognition concerning music and color from a report on the synesthesia, especially color-heard-persons. They have the interminglement phenomenon of the sense that recognizes the image of music and color in the brain. Concretely, we did the questionnaire survey that listens to music and answered the color image. From the analysis of the questionnaire survey, two results are shown. It is suggested that human beings have the synesthesia subconsciously. It is shown that the synesthesia is caused by an influence on the common recognition of music and color.