In this interview (from about 3:40) he talkes about his past and how he developed his techinique together with his father.
He started playing at the age of 6 and his father was immidiately involved teaching him everything about muscle movements etc…
So, he did know all about this a very young age.
And check from about 2:00 where he plays the 16th Caprice completely with his eyes closed, Damn!
