As we all know, many of the ideas of Leonardo could not realize during his lifetime due to the fact that the required technology and materials simply not yet invented. More interesting to know that, finally, mankind has grown to the level of the medieval genius.
In Poland according to the drawings Da Vinci made a unique musical instrument Viola Organista — a hybrid of harpsichord, organ and viola da Gamba. The model which resembles in appearance the Grand piano, gathered musician Slawomir Zubrzycki — he first made Viola Organista sound.
Inside the building the drums, which, revolving, pressed against one or the other strings by pressing some keys. Tool that was born 500 years ago, literally mesmerizing modern listeners.