This video, by Andrew McPherson, is a few years old, but captures a demonstration of his electromagnetically-enhanced Magnetic Resonator Piano.
The Magnetic Resonator Piano is a hybrid acoustic-electronic instrument explores territory similar to Paul Vo’s Acoustic Synthesizer – using electronics to expand the range of sounds that are possible with an acoustic instrument.
McPherson’s Magnetic Resonator Piano preserves all the sounds and techniques of the acoustic piano, while expanding its vocabulary to include:
- Infinite sustain
- Crescendos (including crescendos from silence)
- Harmonics on each string (8 to 16 harmonics are usable on the lower strings)
- New timbres which can be shaped in real time
- Subtle pitch bends
In contrast to the conventional (hammer-actuated) piano sound, the sounds of the MRP are pure and ethereal, emphasizing the fundamental frequency of each string over its high partials.
via Jeremy Wentworth