[bizet's allegro vivace] ♪ well, that's dull.na show a big arrow pointing to a flashing sign saying "savantism"? would be hugely helpful. somehow, he's been rewired as a music specialist. i wanna know how that happens. he has access to parts of the brain that you don't. his brain's doing nothing. it looks like any jerk listening. he's not a savant at listening. he's a savant at playing. well, listening and playing are two different neurological processes. turn off the music. [speaker clicking] patrick, i want you to pretend that your leg is a piano. my leg's not a piano. i know, that's why i said "pretend." the kid's a moron. keep your head still, use your fingers. [beethoven's waldstein sonata, rondo, allegro moderato] ♪ wow. cool, huh? his heart rate rose. emotional response? then why is there no activity in the limbic system? unless there's a problem with his heart. do an echo to confirm. then scrub up, he's gonna need surgery. [sighing] wasn't dystonia. he's got a heart condition that caused the arteries in his arm to constri