Artist Neil Harbisson was born completely color blind.  “To me, the sky is always gray, flowers are always gray, and television is still in black and white.”  But these days a device attached to his head turns color into audible frequencies.  Instead of seeing a world in grayscale, Harbisson can hear a symphony of color — and yes, even listen to faces and paintings.  Now even the way Neil dresses is affected by this device.  “Today I’m dressed in C major, so it’s quite a happ