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b. 64

composition: Op. 10 No 3, Etude in E major

..

The pair of dynamic hairpins was overlooked in EE2.

category imprint:

issues: Errors in EE

b. 65-66

composition: Op. 10 No 3, Etude in E major

Tie to f1 in AI, GE1a (→GE2GE3GE4GE5) & EE3 (→EE4)

No tie in A (→FEGE1,EE2)

Our variant suggestion

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In A (→FEGE1,EE2) lack of the tie sustaining f1 may be Chopin's oversight. In AI the bars are marked as repetition of bars 4-5 (or 12-13), in which f1 is sustained. In A the repetition of the initial fragment of the Etude is written with visibly less concentration; moreover, the proofreading of FE was also less accurate in this fragment (cf. e.g. bars 67 and 69).
On the other hand, the version of bar 67 written in A constitutes a repetition of the figure in bar 66 one fourth higher, which is even more audible when f1 at the beginning of this bar is repeated. Therefore, it cannot be excluded that Chopin omitted the tie of this note on purpose. However, while proofreading FE, in bar 67 the composer eventually resigned from the strict repetition of the previous bar, hence it cannot be excluded that also in the case of sustaining the discussed note, he could have wanted to return to the original concept, although he did not mark it in the proofreading. Taking into account the aforementioned possibilities, in the main text we leave the inclusion of the slur at the discretion of the performer. 

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , GE revisions , Errors of A

b. 65

composition: Op. 10 No 3, Etude in E major

..

FE (→GE1) has an as the 1st note of the bottom voice in the R.H. instead of a b. This patent error was corrected in FES, as well as in EE and in the subsequent GE (in GE1a in a simplified manner – by removing the ledger line without moving the note head).

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , EE revisions , Errors in FE , GE revisions , Annotations in FES

b. 65

composition: Op. 10 No 3, Etude in E major

Slur in A, contextual interpretation

Slur in A (→FEGE,EE)

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According to us, only the beginning of the slur is written inaccurately in A. In the editions, the entire sign was moved to the left, which is hard to be considered as the correct interpretation.

category imprint: Differences between sources

issues: Inaccuracies in FE

b. 65

composition: Op. 10 No 3, Etude in E major

No sign in FE (→GE,EE)

in A

..

In the editions the dynamic sign was most probably overlooked.

category imprint: Differences between sources

issues: Errors in FE