This paper discusses about the relevancy of Solfege ability and Color-heard-sense. We do the questionnaire survey that listens to music and answered the color image. We analyze tonality recognition with questionnaire survey of the music major students and students except for the music major. We use method of the feature extraction of the music according to the adjective image chart, because it is superior than the feature extraction of the music by the factor analysis. From the analysis of the questionnaire survey, two results are shown. It is suggested that the 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.
