Chopin op10-1 tempo marks vs real world time

[johnmar78]

Folks, here is my scientific research, only mathematical data only.

based on Korg TM40 set at 120. One crocthet =4 x1/16 notes.It would took me 2 min and 30 sec = 150 sec. to complete this etude.

so at 140 in my caculation it would be (20/120)X100 = 16.67%  shorter. So 150sec now becomes = 150-((150X16.67)/100) = 125 sec = 2minutes and 5 sec hitting last note C.

so according to Chopin's marking 176 -160(prestomisso).

Therefore, at  160, it would be {(160-120)/120}x100= 33.33 %shorter.
The new time becomes 150-((150x33.3)/100)) = 101 sec =  1 mintes and 41 sec.


So at 176 = {(176-120)/120}X100=46.67% shorter

so new time = 150-{(150sec X46.6)/100}= 81 sec so that is 1 minutes and 21sec.

In real world I have seen the world class pianist play this etude around 1m40 to 2m 20. So at 176 is human impossible speed., so I can not find anyone play that fast unless your are a robot.
So the target real world marking is looked like at 140 mark.
Correct me if you think my caculation is wrong, but I have to say, Chopin's metronome is way off to our modern metronome it must be some errors involved. Have your say...

[keyboardclass]

This one's easily up to speed:

[ajspiano]

No your maths is wrong somewhere -

The piece has 79 bars, 4 x 79 = 316 crotchet beats.

316/176 = 1.79 minutes (or 107 seconds - roughly)

1:47 falls in your range for a professional, and is definitely humanly possible.

[birba]

This one's easily up to speed:

That's about all you can say for it.

[ajspiano]

^ hahaha I didn't comment because there was nothing good to say about it..

[johnmar78]

Yes, AJ, you caculation makes sense, i still could not find where went wrong in my caculation, can you spot it...

Validimir playing is like chew up a steak in no time , racing for something.

[birba]

Not THIS Vladimir.  I think the perfect execution of this etude - it's an etude, folks.

[johnmar78]

Not THIS Vladimir.  I think the perfect execution of this etude - it's an etude, folks.

yup. I have seen this many times, he is always my role model, the girl behind the scene, used to be his student, now its his wife.

[birba]

Oh, how interesting!  Didn't know that.

[johnmar78]

She is Finnish, ended up 5 happy childern. Validimir Askanzy was smart pick the best looking one....

[keyboardclass]

Not THIS Vladimir.  I think the perfect execution of this etude - it's an etude, folks.

Pedestrian!