At the Yamaha 45 years streaming event in Hamamatsu, Japan, we were lucky enough to get a tour of the Innovation Road - Yamaha's history of products museum - which incidentally is open to the public. One of the items on display is the physical modeling VP-1 - one of Yamaha's physical modeling instrument from 1994 - it is incredibly rare, with only a handful of units in existence.
We persuaded YamahaSynth.com's Nate Tschetter to fire it up and let us have a listen.
Designed primarily as a polyphonic physical modeling keyboard after the VL-1, it's specialty is plucked, struck and bowed sounds. With 4 elements (to the VL's 2) and plenty of on board effects, it was highly advanced and required a massive amount of DSP.