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b. 12-14

composition: (Op. 4), Sonata in C minor, Mvt IV

..

In A there is a  to f2 in bar 12, which was added in pencil by a foreign hand. Similar accidentals are also in the L.H. part in bars 13-14, in which the omitted accidentals to the bottom octave notes were added (B1, B1, A, A1, A1), yet the top note of the last octave in bar 14 (a) was left without an accidental. It remains unclear who, when and why added them, as these additions include only a small fraction of the accidentals omitted by Chopin and added in GE, which rather rules out the natural assumption that it was the reviser of that edition. We do not consider these accidentals to be a part of A and do not reproduce them in the transcriptions of this source.

category imprint: Source & stylistic information

issues: Foreign hand additions in manuscripts

b. 13-14

composition: (Op. 4), Sonata in C minor, Mvt IV

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In A Chopin omitted the 5 necessary accidentals to the bottom octave notes, as well as the  to the top note of the last octave in bar 14 (a). All the accidentals were added in GE (→FE,EE,IE).
Similarly in b. 196-197.
Pencil annotations in a foreign hand – see b. 12-14.

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Inaccuracies in A

b. 14

composition: (Op. 4), Sonata in C minor, Mvt IV

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In the main text we add a cautionary  to e3.

category imprint: Editorial revisions

b. 16

composition: (Op. 4), Sonata in C minor, Mvt IV

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In the main text we add a cautionary  to f1. Chopin wrote a respective accidental only just in the next bar.

category imprint: Editorial revisions

issues: Cautionary accidentals

b. 20

composition: (Op. 4), Sonata in C minor, Mvt IV

category imprint: Differences between sources; Editorial revisions

issues: GE revisions