I was practising 10 in the morning luckily when everyone was out Saturday morning. I was able to do some recordings. The middle section I feel that is quite dragging, I try to play more rubato, but my teacher said I can't play too much of it. It should play very slow and subdue. This nocturne is not always heard as popular as other Chopin nocturne. It is hard to know what the right interpretation, even though, it is romantic period, it can be more flexible with the rhythm, but it can't be over board. I have been listening different recording, there are so many different interpretation, some play moderately faster than other pianists. There is very strong part, forte and double forte and con forza, some recording don't really show that much. My teacher said I need to play really loud, and strong. It is hard to know what is right.