DESCRIPTION:
This viewer Q&A was requested by Kim Jacobs. I hope it will be useful to others looking for practice tips.

Download sheet music (free) from the IMSLP Music Library. http://imslp.org/wiki/Nocturne_in_C-sharp_minor,_B.49_%28Chopin,_Fr%C3%A9d%C3%A9ric%29

I recommend the Pierre Gouin edition, featured in this video.
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English language spoken in this video as text for online translation is posted in the first "uploaders" comment box, as it is too long for YouTube's video information.