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Russian composer Alexander Scriabin claimed to experience music as color: The note C elicited images of the color red in his mind, while G (a perfect fifth above C) was orange, for example. In fact, many musicians claim to see notes as colors, from Scriabin’s Russian contemporary Nikolai Rimsky-Korsakov to modern stars like Tori Amos and Billy Joel. Such blending of sensory experiences is called synesthesia, and it is not limited to music.