I always love to listen to Chopin. This piece, perfomed brilliantly by Lang Lang here is the Etude Op.10 No.5.
It is sometimes known as The Black Key Etude as it uses predominantly black keys. This is a great piece to use in my lessons when learning about Keyboard Geography and improvising on just the black keys (a safe way to make music that sounds pretty good even with both hands!)
It's incredible to think that this sparkling piece is an Etude - or a study piece! These are pieces designed for perfecting a particular technique. Chopin's Etudes are all challenging and all beautiful. Get listening too!