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b. 37

composition: Op. 25 No 4, Etude in A minor

g-c1 in A (→FC,FE), EE & GE2 (→GE3)

Only c1 in GE1

..

The missing note on the 2nd quaver is certainly an oversight of the engraver of GE1. The error was corrected in GE2 (→GE3).

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 38

composition: Op. 25 No 4, Etude in A minor

Wedges in FC (→GE) & EE

No marks in A (→FE)

..

Lack of staccato signs in A (→FE) is almost certainly a result of Chopin's distraction. Cf. bars 25-26.

category imprint: Differences between sources

issues: Inaccuracies in A

b. 39-40

composition: Op. 25 No 4, Etude in A minor

No signs in A (→FE) & EE1 (→EE2)

 in A (→GE) & EE3

..

Same as in bars 9-10, Chopin added here two  signs. This time, however, he did it only in FC (→GE). Generally, in bars 39-52 Chopin added the highest number of dynamic signs in FC (in bars 39-42, 44-50 and 52-53). EE has them only in bars 41-42 and 49, while A only in bars 44-45.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FC

b. 39-40

composition: Op. 25 No 4, Etude in A minor

Different accents in A

Short accent in FC (→GE)

Short accents in EE

Long accents alternatively suggested by the editors

..

The question of type of accents written here by Chopin in A (→FE) – short or long – see bars 9-10. The missing accent in FC (→GE) in bar 40 is certainly a mistake – perhaps the copyist was not sure how to interpret the impressively written long accent in A.

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents , Errors of FC

b. 39

composition: Op. 25 No 4, Etude in A minor

Slurs in A (→FE) & EE

Slurs in FC (→GE)

..

It is hard to state how the difference in the slurring between FC (→GE) and A and the remaining sources was created. The copyist's error seems to be the most probable answer, yet it cannot be totally excluded that the slur, beginning in this bar and overlooked by the copyist, was added by Chopin. Independently from the way it was created, the version of FC did not raise Chopin's doubts when he was adding dynamic hairpins in this and further bars.

category imprint: Differences between sources

issues: Inaccuracies in FC