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b. 151

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

c in A

c in GE (→FE,EE,IE)

..

The GE version (→FE,EE,IE) is most probably due to a mistake by the engraver, who either misinterpreted the narrow (most probably added later)  in A or simply confused the accidentals while engraving.

category imprint: Differences between sources

issues: Errors in GE

b. 152-153

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

..

In A Chopin omitted a few necessary accidentals – in bar 152 the flats to g2 at the beginning of the bar, to D and to c3, while in bar 153 the  to g1 and the  to A. All of them were added in GE (→FE,EE,IE).

category imprint: Interpretations within context; Differences between sources

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

b. 154

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

d2 in sources

d2 suggested by the editors

..

Harmonic reasons – a B minor chord is a more natural introduction to the key of F minor in the next bar than its major counterpart – provide an argument for the omission of the  to the top note of the chord at the beginning of the bar (d2, and not d2). This conclusion is confirmed by analogies with similar phrases – cf. bar 161 and 99.

category imprint: Editorial revisions

issues: Omission of current key accidentals , Errors of A

b. 154

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

Slur from B1 in A

Slur from B in GE (→FE,EE,IE)

..

Neither the range nor the shape of the A slur suggest that it should start from the 1st quaver in the bar, as it was reproduced by GE (→FE,EE,IE).

category imprint: Differences between sources

issues: GE revisions

b. 155-156

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

..

In A in bar 155 Chopin wrote flats only to d1 in the R.H. and to d in the L.H. The remaining necessary accidentals were added in GE (→FE,EE,IE). In A in bar 156 there is only one  to g2. The other necessary  was added in EE1 (→EE2) and in the remaining editions.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , GE revisions , FE revisions , Inaccuracies in A , Errors repeated in GE ,