Demonstrations like this have been done by all manufactures for years, (It was certainly done to sell instruments from at least the 70s, which is when I first became interested in Organs and Keyboards) and its great entertainment. (Don’t take life so seriously, just enjoy yourself)

Bill
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English Riviera:
Live entertainment, Real Ale, Great Scenery, Great Beaches, why would anyone want to live anywhere else (I�m definitely staying put).