Piano Concerto No.2 in Ab major (2) John Field Download 'Piano Concerto No.2 in Ab major (2)' on iTunes
This image appears in the gallery:
Lang Lang: The Chopin Album - an album guide
It's one of Chopin's more technical study-style études, notable for its quick bursts of clashing notes throughout the music. Perhaps unsurprisingly, it's known as the 'Wrong Note' étude.