Music has colours???
"Synesthesia or synaesthesia is a perceptual phenomenon in which stimulation of
one sensory or cognitive pathway leads to involuntary experiences in a second
sensory or cognitive pathway. People who report a lifelong history of
such experiences are known as synesthetes. Awareness of synesthetic perceptions
varies from person to person. In one common form of synesthesia, known as
grapheme–color synesthesia or color–graphemic synesthesia, letters or numbers
are perceived as inherently colored."