Alesis NanoPiano Reference Manual page 25

In a well-programmed instrument, dynamic allocation is so
transparent a process you'll never notice it happening. And the
NanoPiano is a very well-programmed instrument.
Here's a test that proves it.
Set the CATEGORY knob to ACOUSTIC PIANO and the
PROGRAM knob to 1. Then turn the volume up, step on your
controller keyboard's sustain pedal, and run your hand up the
whole keyboard in one long glissando. Do NOT let go of the
sustain pedal when you are finished. Instead, just listen to the
lovely, long, naturally fading decay and see if you can tell how
the NanoPiano is managing to sound like it has more voices
than it actually has. I think you'll be pretty impressed.
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NanoPiano Reference Manual 25