Help! Chopin lovers- What is this piece?

[holden4]

It's romantic, slooow piece by Chopin. I heard it playing but cannot find out the title anywhere!
From what I remember it sounds like it be in C sharp minor. begins in left hand. C,G,C,E,G(last G is held for 2 beats or so) This is played in ascending order. Repeat this 4 times. Then right hand comes in with the melody. G   E  FG  C  EE  D  CC etc.
I know, this is very vague! Does anybody know what this could be? and can we get it as sheet music on piano street?

[quantum]

Scherzo No. 4, middle section.