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b. 6-7

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

..

In FE, in the part of the R.H. there are visible traces of correcting up to six erroneous notes in this bar. The engraver's errors resulted here from the routine approach, assuming the presence of the simplest figuration schemes – .

category imprint: Source & stylistic information

issues: Errors in FE , Authentic corrections of FE

b. 6

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

Versions in AI

Version in A (→FEGE,EE)

..

At the time of writing AI, Chopin was still looking for the best melodic continuation for the first, five-bar-long phrase. In the 1st half of the bar, after numerous deletions, he wrote two versions, out of which it was eventually the second one that was adopted, marked in this manuscript as ossia. The only version of the 2nd half of the bar was then changed in A.

category imprint: Differences between sources; Corrections & alterations

issues: Chopin's hesitations

b. 6

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

 in A

 in FE (→GE,EE)

..

The fact of shortening the  hairpins in FE (→GE,EE) is certainly an arbitrary decision of the engraver.

category imprint: Differences between sources

issues: Inaccuracies in FE

b. 6

composition: Op. 25 No 1, Etude in A♭ major

No mark in CDP & EE

Short accent in AI & GE

Long accent in A

 in FE

..

Neither in AI nor in A is the type of accent Chopin thought of here clear. The sign is visibly shorter in AI than in A, therefore, we interpret it as a short and long accent, respectively. This is how we give it in the main text. According to us, it is highly likely that a long accent was written also in the base text to FE, reproduced inaccurately as .

category imprint: Differences between sources; Corrections & alterations

issues: Long accents

b. 6

composition: Op. 25 No 1, Etude in A♭ major

..

In all manuscripts, FE and EE1 (→EE2) have no flats returning e2 and e1. This inaccuracy, so characteristic for Chopin, was corrected only in GE and EE3.

category imprint: Interpretations within context; Differences between sources; Corrections & alterations

issues: EE revisions , Omissions to cancel alteration , GE revisions , Errors of A