Take perfect pitch to the next level, and you get a form of synesthesia. A person with this condition translates one sense into another. The following story is about a woman who sees colors associated with different pitches and keys.
She mentions not being able to stand being in a room because it was painted in colors that represent a tri-tone.
Franz Liszt, Alexander Scriabin, and Nicolai Rimsky-Korsakov were apparently synesthetes. I have read about other composers who were able to "see" their compositions.
To hear the full story, click on the "listen" icon.
I wonder, is it possible to learn to synesthese?