This Étude is really painful for the right hand. Difficulty comes from medius, ring and little playing chromatic scales while thumb and index punctuating.
The thumb cannot be used as a pivot while playing it. After a single execution the muscles are painful because we are not accustomed to produce legato with only fingers 3, 4 and 5.
Is there a hand position that can help? I have heard that Asians have a different hand morphology that can help them for that piece, is this true?
Thank you for your answers.
Link: score (Public Domain) on IMSLP.