All the way back in 1972, Tony Furse managed to get funding to build a polyphonic digital/analog synth. That was the Qasar.
He built precisely two prototypes–the finished machine would have been far too costly for the era, so no investors came forward. Tony persisted, though, and developed it into a primitive sampling machine with dual 6800 microprocessors (brand-new on the market) in 1978. That machine, the Qasar M8, eventually was commercialized as the Fairlight CMI. (More history here.)