Pianos for Left Handers

João Gilberto and Antônio Carlos Jobim I found a video of Tom Jobim that evidently had the video reverse somehow, so that his left hand was playing the melody in the upper register. I commented on it on YouTube and got a reply, that there is a company in Germany (Gezo Losa) that makes pianos for left handers.

Check out the interviews with the company, and the teenagers who are learning to play reversed pianos: Pianos for left-handers. Could someone please explain to me why this is not crazy?

I think I may make a movie where I demonstrate a new piano that I pretend to have developed, supposedly updating a design from which a few instruments were built in the 1940's. Show Erroll Garner playing it (it was easier for him to switch because he was ambi-dextrose). The footage would just be reversed, no need to actually construct an instrument.