Chopin Waltz Op 64 No 2

[jas_sorian]

Tips for playing the piu mosso part pp?  Whenever I play it fast, the softest I can do is mf. 

[avengeil]

From what I can tell you (which is not to be taken for granted)

I'd propose you to try to relax the muscles of you wrist by playing it at a lower speed and using a lot of rotating movement(i. e. rotating  your wrist) in order to get a sweeter touch....

Anybody with a greater knowledge feel free to correct me.