The authenticity of the version of EE cannot be excluded, yet, according to us, a mistake is more likely here, e.g., due to the similarity of the 2nd half of the bar to bar 34. Chopin resigned from striking b in similar places only when the note was being performed by the L.H. (bars 34, 42 and analog.) or when the 1st finger of the R.H. remained on the d1 crotchet ending the phrase of the middle voice of the R.H. (bars 60 and 80). The preserved in EE 4th finger over this quaver also provides an argument for a mistake – a single b1 note is easier to be performed with the 2nd finger.
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category imprint: Differences between sources
issues: Errors in EE
notation: Pitch