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Anybody try the finger strumming/swiping I mentioned? I've done it before. You can feel the bouncing back of the action.


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Here is a link to a 15 second video of me playing a two handed repetition and ending with a right hand 4-3-2 swipe several times.

https://www.dropbox.com/s/hz4qzmskj3n4vcc/IMG_0182.MOV?dl=0

I think the swipe might be a tad faster but I can't play more than three notes a swipe.

prout

Edit: I analyzed the file above. My best estimate shows 10.59 strikes/sec for the two handed approach and about 10 strikes/sec for the swipe. Being only three notes I averaged the three sample sets. It is hard to tease out the precise strike time when the three fingers are not producing the same acceleration.

The previous PW thread Jeff refers to above talks about Seiler Pianos specifying 400 repetitions/min and Martha Argerich playing at 680 repetitions/min. As you can see and hear from my own data, My piano produces somewhere in the range of 616 to 656 repetitions per minute.

Last edited by prout; 11/21/16 05:51 PM.
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Prout,
I agree that the "natural" mode of reciprocation of the hammer and action determines the upper limit of repetition speed of an individual note.

Now there is the movement of the fingers in combination with hand/arm/upper body across the compass to produce a wondrous "cacophony"of notes in rapid succession. This is also a type of "repetition". One wildly more significant than single note repetition.


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Originally Posted by Ed McMorrow, RPT
Prout,
I agree that the "natural" mode of reciprocation of the hammer and action determines the upper limit of repetition speed of an individual note.

Now there is the movement of the fingers in combination with hand/arm/upper body across the compass to produce a wondrous "cacophony"of notes in rapid succession. This is also a type of "repetition". One wildly more significant than single note repetition.


Absolutely.

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Del had some numbers on the "speed" of different actions and how they can be determined.


Seiler 206, Chickering 145, Estey 2 manual reed organ, Fudge clavichord, Zuckerman single harpsichord, Technics P-30, Roland RD-100.
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