Every so often, one wonders if there really was such genius who could pick up complicated tunes by heart. They were seen in made up movies, but rarely mentioned in real life. One would assume, they have perfect pitch, being blind might have been advantageous.
Kuha'o could be such person. Came across him on youtube. Blind, with perfect pitch. Self taught piano player for 3 years and without much access to the song "Carry On" by Kansas, he played it by heart. If it is true, a case study on this boy may be enlightening.
Of course, I much rather fancy the Broadway version seen in Supernatural S10E05. Not the song, but the piano accompaniment.