Thank You for comments!
Netherland is evidently closer to Poland than Estonia...
Yes it is, now that I actually look at the map
I have beenplaying mazurkas accordingly to the notes published in Moscow ( 1974). I did compare this with Peters and Padarewsky and indeed: in their reductions the harmony of the bars 19-20 is E-G#_A# (in my note it is E#-G#-A#).
I think that Peters and Padarewsky version is correct alltough even the moskovian harmony is absolutely logical. In the future I will play in this chord E (instead of E# ).
Indeed the E sounds good too. But there is more tension with the E#, and if Paderewski has that too I assume it is correct (my Russian teacher always says this is the best Chopin edition).