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b. 276

composition: Op. 21, Concerto in F minor, Mvt I

..

Same as in analogous bar 128, in A there is no accidental before the crotchet in the middle voice. It must be an oversight, corrected already in GE1 (→FEEE, →GE2).

category imprint: Interpretations within context; Differences between sources

issues: Omission of current key accidentals , Authentic corrections of GE , Last key signature sign , Inaccuracies in A

b. 276-278

composition: Op. 21, Concerto in F minor, Mvt I

Slur in bar 278 in A (literal reading)

2 slurs in GE (→FE)

2 slurs in EE

Slur in bars 276-278 suggested by the editors

..

In A bar 277 is the last one on the page and it does not contain phrase marks. In turn, in bar 278 there is a slur suggesting a continuation from the previous bar. Therefore, it seems that Chopin forgot to write the initial part of the slur, most probably of the one with which he embraced that phrase in bars 128-130. This is the slur we suggest in the main text. In GE, next to the slur in bar 278, roughly reproduced, a slur of a similar range was added also in bar 277. If the implemented proofreading had been inspired by Chopin, which cannot be excluded, it would be a correction of an ad hoc nature rather than an intended variation of phrasing.

category imprint: Graphic ambiguousness; Interpretations within context; Differences between sources

issues: Inaccurate slurs in A , EE inaccuracies , Authentic corrections of GE

b. 276

composition: Op. 21, Concerto in F minor, Mvt I

Quaver c1 in A & FE (→EE)

Crotchet c1 in GE

..

A line pointing down next to ledger lines (most of the time the first bottom one, i.e. c1 or E – see e.g. the last E in bar 280), sometimes appearing in Chopin's autographs, misled here the engraver of GE. The additional stem is already absent in FE (→EE), which could have been, but did not have to, a result of Chopin's proofreading. However, one has to admit that in this case the extension of cis quite reasonable, as far as the harmony is concerned. 

category imprint: Graphic ambiguousness; Differences between sources

issues: Authentic corrections of FE , Uncertain notes on ledger lines

b. 277

composition: Op. 21, Concerto in F minor, Mvt I

..

In the main text we add a cautionary  before e1.

category imprint: Editorial revisions

b. 278

composition: Op. 21, Concerto in F minor, Mvt I

Long R.H. accent in A (literal reading→GEFE)

R.H. short accent in EE

L.H. long accent in A, interpretation suggested by the editors

..

Same as in bar 130, we consider that it is more likely that the accent refers to the L.H.

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents , EE inaccuracies , Inaccuracies in A