This is the action from a clients Bluthner grand piano which has the unique PATENT ACTION.There were problems with sluggishness of the keys and notes not sounding on fast repetition.Here is example of the processes involved to rectify the problem.
This Bluthner has just been rebuilt and is being played for the first time. Many upright overdamped pianos of this early era
sound quite thin compared to pianos of today
This is a vid of me explaining how this very old Bluthner piano produces its sound.Todays piano technology has evolved and they sound very different to this with much more responsiveness with the keys and the sound if far richer.
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