Synaesthesia could be a little difficult to understand: here's some extra info about it.
From Dictionary.com:
- A condition in which one type of stimulation evokes the sensation of another, as when the hearing of a sound produces the visualization of a color.
- A sensation felt in one part of the body as a result of stimulus applied to another, as in referred pain.
- The description of one kind of sense impression by using words that normally describe another.
Online articles:
'I can see sounds' - from BBC.co.uk
Synaesthesia - from the BBC's h2g2 encyclopedia
What
Wikipedia.org has to say about it
Finally,
an article about
Justin Lassen, a musician, producer and composer who translates what he experiences through synaesthesia into music. He's on
Livejournal too!
I hope it helped ^_^