Yes hahaha op 10 #1 is really hard those really big arpedios sure is a big problemnot only that ive played it slow but its not so easy even if slow. i tried it hard its really a monster hahahaha.why did chopin make a piece like that.a piece very hard to play.if i know one of you here who can play etude #1 op 10 tell me and ill be amused..