Here is a cool article about some friends of mine who describe their synesthetic experience. I'm intrigued by the parallels between the creative process, which often involves combining ideas, and synesthesia - combining senses, or sense mixing, and especially that people in the creative arts are approximately seven times more likely to have synesthesia than in other fields.—D.W.
Turnstyle > Synesthesia: Three Composers And Their Sensory Inspiration