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b. 143

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

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We add a cautionary  before g2 in the main text.

category imprint: Editorial revisions

b. 143-146

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

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In the main text we omit the unnecessarily repeated flats to d4 in the 2nd half of bar 143 and 145 and to f3 on the 3rd quaver in bar 144 and 146.

category imprint: Editorial revisions

issues: Cautionary accidentals

b. 143

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

Long accent in A, contextual interpretation

Short accent in GE (→FE,EE,IE)

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The accent entered into A corresponds to a short accent in terms of size, but the characteristic shift beyond the note points to a long accent, and this is the interpretation we suggest in the main text.

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents , Inaccuracies in A

b. 143

composition: Op. 12, Variations in B♭ major

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In the main text we omit the cautionary  to d1, present in all sources. Chopin probably inserted it due to d1 in the next bar, yet the change of mode had already been indicated by the change of g1 to g1, hence the notation of both bars should be clear.
Two notes later we also omit the unnecessarily repeated  to e1.

category imprint: Editorial revisions

issues: Cautionary accidentals

b. 143-145

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

No fingering in A (→GEFE,IE)

Fingering in EE

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In the main text, we do not include the inauthentic R.H. fingering added by EE.

category imprint: Differences between sources

issues: EE revisions