Benjamin Franklin and Wolfgang Amadeus Mozart?? Why Not??

Since the Renaissance, the production of musical sounds by spinning a goblet moistened around its rim and having a finger produce the sound by touch has been in existence. Even Galileo experimented with this device.
When Mozart was five years old, Ben Franklin, that indefatigable Renaissance Man, developed an instrument he called the ' armonica' ( from the Italian for 'harmony'), by having a rod go through about 37 or so goblets, spun around by a foot-operated mechanism not unlike that of a spinning wheel, and there you have the Glass Armonica. Franklin was also a musician, playing three or four instruments. There are some drawings extant of the old man himself sitting at his invention.
So all one had to do was to keep one's finger constantly moist in order to perform this instrument, while the goblets spun around gleefully.
Mozart wrote music for this unique music-maker, which is listed as, I believe, K. 617, or thereabout. Beethoven wrote for the armonica as well, as did many other lesser composers.
You MUST hear the sounds emanating from the armonica - like no other in music!