My immediate reaction to the piece (when I first saw the score i mean) was "Ha, arpeggios that are specifically bigger than the average reach, I bet chopin was thinking 'all those fools that try to stretch to notes and fail to support the technique with their arms are going to HURT themselves doing this'"
It simply can not be played at final speed and with expression unless you do it exactly the right way.
Excellent point...lets break it down a little.
In totality the piece is very similar to the first group of hannon scales but, stretched out. I don't know for sure if one influenced the other however the almost identical mistake can be made in taking connectivity and note value for granted.
In this etude there is virtually no escape from recognizing the intended communication between the baby finger and the thumb, while of course keeping the hand somewhat supple. So....in each octave run...upwards the bridge which introduces the next octave comprises a communication between the baby finger and the thumb....that is the order of expected fingering....There fore we can easily assume that the sequence expected is deserving of a reasonable connectivity or legato which is consistent with all other note transgressions. If this is so, then 1-5 or thumb baby progression must be fluent, as fluent and discernable as all others.
The only way this can be so, is if the hand is visually smaller less spread out ,for this instance in execution. We cant see it in the top preformers due to camera angle and speed, but can be rest assured the 4-5-1 at the end of each group going upwards is, without any distortion, even and fluent, without any hand , wrist or arm jerking, and as coherent as ...mary had a little lamb...when practiced slowly,,,allowing the clarity to extend itself when the tempo permits.
The hand goes from open like an accordian and then gradually & evenly closes slightly at the 4-5-1....The only way to accomplish above is to allow the thumb to be in slow constant motion shadowing each note being struck. Doing so will place hand in perfect position gradually and naturally slightly closing or one could say less open for the final 4-5-1...(1 being the next starter C)...also its remarkable how natural it is to keep the hand supple and achieve perfect timing , connectivity, legato and individual effort with the weaker 5-4.
The above approach really does mimic the thumb behaviour in scalework perfectly.
The hannon scales...say the first one...After the thumb strike and the E has been struck....connectivity has been established...the thumb then at this moment should be on route passing under very slowly and gradually following the notes being struck....and returning with each progression. Thats the value in the hannon....to establish this form neccesary for note striking stability just like the etude Opinion. Any way until tomorow