Never 'Never seen', is precisely the buzz word here.  Our unique and latest development allows you to own the luxury of piano automation installed into almost any acoustic piano, even historical instruments, without endangering its integrity or value.  With the complete system residing inside the piano key-frame, now, there is no longer any need to cause the permanent alteration required to the pianos structure as with other now outdated piano automation systems.  This, not only enhances your pride and joy with astounding music performance, it remains completely hidden but above all, in no way effects the value of your treasured asset, while only improving it.