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, there was an organ at winchester cathedral, it had stops and two manuals, probably consisting of lever type keys, all naturals with no accidentals, taking, it is said, three men to play it. the organ was the first instrument with a keyboard, and the weight of its keys, like that of many other instruments
the crude levers, which to us would hardly be recognisable as a key. it was not unknown for players to be called "organ beaters." organ players began complaining of uneven touch on the organs. a contract between an organ builder and rouen cathedral in refers to the repair of the keyboard with the purpose...
https://www.piano-tuners.org/history/compass.html