This is a demo of the Roland P-330 Digital Piano Module.

via zibbybone:

The Roland P-330 uses the same S/A technology as the famous RD-1000 & MKS-20.

It features 8 basic tones (3 acoustic pianos, harpsichord, clav, vibraphone and 2 electric pianos) along with chorus, tremelo and EQ to create unique timbres. It has 64 patch program memory to store custom tone and effects settings.

Since the P-330 does not have a built-in demo mode, I downloaded a MIDI file of Chopin’s Etude Op 10, No 4 and played it from my Roland X6’s sequencer while scrolling through the 64 factory preset patch programs.