Playing a Piano with Typewriter Keys

We've seen typewriters used as musical instruments a few times, and while it's cool, it's not all that melodic. But now it is.  Brazilian pianist Fabricio André Bernard Di Paolo, or Lord Vinheteiro (previously at Neatorama) is not only a talented musician, he has a deep knowledge of every every note on every piano key. He attached strings to his piano so that he could play it by typing on two typewriters! Now the piano is a stringed instrument. Sure, he did the attaching, but keeping track of which key goes with which note takes a lot of cognitive bandwidth. Not only that, but he is playing the melody with his left hand, and the bass rhythm with his right, because he has his back to the piano. That's somewhat akin to playing the piano from its backside, but harder because it's two typewriters. The song sounds lovely, punctuated by the clacking of the typewriter keys.