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b. 25

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

a1 in AI, A (→CDP,GE) & EE

e1 in FE

..

The version of FE may be a result of Chopin's correction – in the manuscript base text or in the very FE. One cannot also exclude a kind of misunderstanding at the time of interpreting the manuscript. Due to these issues, in the main text we give the undoubtedly authentic version of the other sources.

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 25

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

..

The cresc. indication appears in AI more or less in the middle of the bar. It is the only dynamic indication in this bar there (together with the dashes determining its range). In A the indication is written – inside the  hairpins – slightly earlier, on the 2nd beat of the bar. In GE and FE it was placed later, at the beginning of the 3rd beat, while in EE earlier, at the beginning of the 2nd beat (in the latter the dynamic indications were separated by placing cresc. under the hairpins). 

category imprint: Differences between sources

issues: Inaccuracies in GE

b. 25-28

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

..

In CDP there are no pedal markings in bars 25-28 (and further on, until the end of the piece). We do not consider it as an independent version – see the characteristics of this manuscript.

category imprint: Differences between sources; Source & stylistic information

b. 25-26

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

Two slurs in AI, A (→CDP), FE & EE

One slur in GE

..

The slurring of these bars in A is not entirely clear due to the transition to the new line of the text. However, it does not seem that Chopin would like to deviate from the clear slurs he wrote in AI. This is how it was most probably understood in the base texts for FE and EE, as well as CDP. The two-bar slur in GE is a different attempt to interpret the notation of A, yet it does not reveal anything concerning Chopin's view on this issue.

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccuracies in GE

b. 25

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

..

In the majority of the sources, there are inaccuracies concerning the notation of accidentals, not having an impact on the interpretation of the text. In AI, A (→CDP) and FE, there are no naturals before the 3rd note in the L.H. (a) and the 4th note in the R.H. (e1), while in EE1, there is no  before the 3rd note in the R.H. (c2). GE and EE2 (→EE3) have the correct text. In some of the sources, there are additional cautionary accidentals – naturals before in the middle of the bar and a1 in the last group in AI and before c3 in GE3 (→#GE4). 

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Inaccuracies in FE , Errors in EE , GE revisions , Inaccuracies in A