Why Hasn't There Been A Multitouch Piano Before Now?

Thanks to this Kickstarter project, pianists can finally introduce elegant wiggly vibrato into their playing--without getting a new piano. The venerable piano allows for ten (or more!) notes to be played at once, which makes it ideal for composing complex music. Yet there's one thing even the electric piano has never been able to do: change the tone of a note after it's been struck without resorting to an awkward wheel. A Kickstarter project aims to change that with the aid of touch sensitivity....