sorry i din't say i want to do feux follets for the first answer.
There is a modify button - you can edit your posts and make them clearer, more precise. I know English is not your first language - - you could form the sentence in your original language, with as much precision as possible, and then translate to English using Google Translate... it's quite easy.
I'm not sure why you think Chopin Etude 10/4 is a specific stepping stone to Feux Follets. Many consider it one of the most difficult pieces by Liszt - to prepare for it play a lot of Chopin Etudes and Liszt etudes.