This was quite the interesting read. I have synesthesia and I've had it since I was about 5/6 ever since I awoke from a successful brain surgery. I didn't even know that there were that many different types of synesthesia out there. I can see and sound and more specifically music in color as well as taste it. I also see letters and numbers in varying colors too. That's about the full extent of my synesthesia though, haven't explored it further.