“We say that someone has the eye of a painter or the ear of a musician but anyone lacking these qualities hardly suffers from a kind of blindness or deafness.”

“We say that someone doesn’t have a musical ear, and aspect-blindness is (in a way) comparable to this inability to hear.”

These are quoted from Ray Monk’s great biography of Wittgenstein, The Duty of Genius. Apparently Wittgenstein uttered them in conversation with his friend, Drury, a psychologist.