Student makes electronic music using head and thumbs

A teenage girl sits in a dimly-lit room wearing sunglasses playing the prelude to Bach's cello suite. A clip of this performance can be found on the internet.
There is nothing remarkable about this until you learn that she is playing every crotchet and quaver using only the slightest movements of her head and thumbs.
At the age of 11, Charlotte White suffered a blow to the head which caused her to lose all movement in her body.