The piano has been living with a beautiful legacy, but that legacy can double as tyranny. The Steinway Model D, favorite instrument of mine that it is, has also frozen the technological development of the keyboard instrument. And that’s why the Una Corda is different. Built custom by David Klavins, and associated with that builder’s collaboration with pianist Nils Frahm, this lightweight piano is unlike any you’ve seen or heard before. And now, you can get a taste of playing the real thing with a software instrument.