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b. 216-217

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

5 staccato dots in A

4 wedges in GE (→IE)

Wedges in b. 217 in FE

No marks in EE1

4 dots in EE2

..

In the main text we reproduce the 5 staccato marks – undoubtedly dots – entered into A. In GE (→IE) the mark at the beginning of bar 217 was omitted, while the remaining ones were reproduced as wedges. The absence of the marks in FE (bar 216) and EE1 (in both bars) is due to the engravers' mistakes. In EE2 marks were added in the places in which they are present in GE, yet dots were used, as in bar 215.

category imprint: Differences between sources

issues: EE revisions , Errors in FE , Errors in EE , GE revisions , Wedges

b. 216

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

Quavers in A

Crotchets in GE (→FE,EE,IE)

..

At the beginning of bar 216 and 220 in the main text we keep the typical, simplified A rhythmic notation. In GE (→FE,EE,IE) the rhythmic value of the top note was changed to a crotchet, most probably in order to complete the top voice rhythm. 

category imprint: Differences between sources

issues: GE revisions

b. 218

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

No marks in A

2 wedges in GE (→FE,EE,IE)

..

Performing the crotchets in this bar staccato, as in the preceding bars, seems natural, hence highly likely. However, Chopin did not mark it, as one can imagine a change to the kind of articulation due to the possible continuation of crescendo; in the main text we leave this issue to the discretion of the performer.

category imprint: Differences between sources

issues: GE revisions

b. 218

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

Short accents in GE (→EE,IE)

Long accents in FE

..

It is difficult to find a justification for the change of font and position of these 4 accents in FE – in GE they are identical to the ones in bar 217 and 221-222.

category imprint: Differences between sources

issues: Long accents , FE revisions

b. 220-221

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

2 staccato dots & slur in A, literal reading

2 wedges & slur in GE (→FE,EE,IE)

Dot & slur in A, possible interpretation

Slur in A, different interpretation

2 dots in A, contextual interpretation

..

According to us, when interpreted literally, the A notation is an example of an uncontrolled change to the concept of articulation markings (another example – see I mov., bar 102). Chopin probably wanted to replace one or both staccato dots with a slur or the other way round. We consider the latter to be more likely – initially, the composer wanted to diversify the bass articulation by writing slurs in bars 219-220 and 220-221; then he decided to use a slur only the second time, to emphasise the modulating B-c step, while in bar 219 he added dots. Therefore, in the main text we keep only the staccato dots, being probably the later concept.
The use of wedges in GE (→FE,EE,IE) was an arbitrary decision by the engraver of GE, as in bars 216-217.

category imprint: Graphic ambiguousness; Differences between sources; Editorial revisions

issues: Inaccuracies in GE , Wedges , Partial corrections