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b. 76-79

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

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In the main text we include the 4 cautionary flats to e3 added to these bars by GE (→FE,EE,IE).

category imprint: Differences between sources; Editorial revisions

issues: GE revisions

b. 77-79

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

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In A Chopin omitted a few necessary accidentals – the naturals to the top notes of the L.H. crotchet chords in bar 77 and 79 (a2) and the  to the last quaver in bar 77 (c4) and the naturals to the first and last quaver in bar 79 (a3 and e4). In GE (→EE,IE) 4 of them were added (except the  to a2 in bar 79); the fully correct text is only in FE

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Omission of current key accidentals , FE revisions , Inaccuracies in A

b. 80-83

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

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In A there is no  to the middle note of the arpeggiated L.H. chord (a1) and not a single  to the a notes (in different octaves) in the next 3 bars. Chopin also omitted the naturals raising e2 to e2 in the 2nd half of bar 81 and e1 to e1 in the 2nd half of bar 82. In GE (→FE,EE,IE) all necessary accidentals were added, considering the validity of accidentals irrespective of the presence of an octave sign (the 2nd half of bar 81 was left without accidentals).

category imprint: Interpretations within context; Differences between sources

issues: GE revisions

b. 85-93

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

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In A the A1-A octaves in bar 85, 89 and 93 are provided with only one  each, before the top notes. The patent inaccuracy was corrected in GE (→FE,EE,IE).  

category imprint: Interpretations within context; Differences between sources

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

b. 96-97

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

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In both bars the  to A1 is written in A just below the stave, hence at the pitch of F or E. Chopin was probably adding these accidentals later and put them at a distance from the noteheads so that they do not blend in with the ledger lines, firmly convinced that in this context it would not lead to any misunderstanding.

category imprint: Source & stylistic information

issues: Accidental below/above the note , Inaccuracies in A