play him a tune he has never heard before. he can play it right back. crazy in love with a flourish. yea! derek is continually reinventing the material. he is not an ipod at all. no, no, no. you re an ipod with a creativity chip, derek. yeah. reporter: unable to see or communicate at the age of 2, derek started banging a keyboard. and he hasn t stopped since. he is what i call an exceptional cognitive environment when the whole mind becomes focused on this one thing. reporter: you say you think? you don t know for sure.
play him a tune he has never heard before. he can play it right back. crazy in love with a flourish. yea! derek is continually reinventing the material. he is not an ipod at all. no, no, no. you re an ipod with a creativity chip, derek. reporter: unable to see or communicate at the age of 2 the, derek started banging a keyboard. and he hasn t stopped since. he is what i call an exceptional cognitive environment when the whole mind becomes focused on this one thing. reporter: you say you think? you don t know for sure.