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b. 115

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

..

In the main text we include the cautionary  to c2 added in GE (→FE,EE,IE). By contrast, we omit the  to f1, the 7th quaver in the bottom voice, unnecessarily repeated in A (→GEIE).

category imprint: Differences between sources; Editorial revisions

issues: EE revisions , GE revisions , Cautionary accidentals , FE revisions

b. 118-123

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

..

In the L.H. part, led in octaves, Chopin puts accidentals only to one of the notes, usually the top one (only the  to d in bar 122 concerns the bottom note). All the necessary accidentals were added in GE (→FE,EE,IE).

category imprint: Interpretations within context; Differences between sources

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

b. 118

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

..

In the main text we include the cautionary  to f1 in the first R.H. chord added in GE (→FE,EE,IE). Considering the key of G minor, well-established for several dozen bars, we also add flats to a and a1.

category imprint: Differences between sources; Editorial revisions

issues: GE revisions

b. 120

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

..

In A the  restoring b3 on the penultimate quaver of the top voice is missing. The patent oversight was corrected in GE (→FE,EE,IE). Similarly, in bar 121 and 123.

category imprint: Interpretations within context; Differences between sources

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

b. 121-123

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

..

In A there are no  restoring e3 in bar 121 and lowering d2 to d2 in bar 122 and on the penultimate quaver in bar 123, as well as g1 to g1 in bar 123. All the missing accidentals were added in GE (→FE,EE,IE).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , Omissions to cancel alteration , GE revisions , Omission of current key accidentals , Errors of A