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b. 155

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

  in A, possible interpretation

 in GE (→FE,EE,IE)

..

When interpreted literally, the A dynamic markings seem contradictory –  is already under the 2nd crotchet in the bar, hence there is no point of reference for . In the content transcription of A (version "edited text") we relate  to the L.H. minim, which can be considered a suggestion for independent dynamics in the parts of both hands in the following bars.
However, we believe that the most convincing, both in terms of sources and music, explanation of the A notation is the following:  is the initial version, left by inattention after having introduced later markings, that is  and . We provide the resulting version, compliant with the GE text (→FE,EE,IE), in the main text.

category imprint: Differences between sources; Editorial revisions; Corrections & alterations; Source & stylistic information

issues: Corrections in A , Errors resulting from corrections , GE revisions

b. 156

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

Slur to crotchet in A

Slur to 4th quaver in GE (→FE,EE,IE)

category imprint: Differences between sources

issues: Inaccuracies in GE

b. 157

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

..

In the main text we add cautionary naturals to the 1st L.H. octave and the 6th R.H. octave.

category imprint: Editorial revisions

b. 158

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

Slur in A, literal reading

Slur in GE (→FE,EE,IE)

Slur suggested by the editors

..

The beginning of the slur must be inaccurate in A; however, it is uncertain whether Chopin wanted the ending of the slur to encompass the B1-B crotchet. In the main text we provide a slur reaching this octave, assuming that both endings of the slur are similarly inaccurate in A (too short). However, the version of the editions can be considered an equally valid interpretation of this slur.

category imprint: Graphic ambiguousness

issues: Inaccurate slurs in A

b. 159-162

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

No fingering in A (→GEFE,IE)

Fingering after EE

..

In the main text we do not include the inauthentic R.H. part fingering added by EE in bar 159 and 161-162.

category imprint: Differences between sources

issues: EE revisions