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b. 12

composition: Op. 2, Variations, complete

..

In the main text we add a cautionary  to b1.

category imprint: Editorial revisions

b. 14

composition: Op. 2, Variations, complete

..

In A, there are no naturals to the b2 and b3 demisemiquavers. The latter was already corrected in GE (→FE,EE). In the case of b2, the missing  does not have to be considered a mistake, since the rules of validity of accidentals are not strictly determined in this context – b2 sounds higher than the b1 note at the beginning of the bar (an accidental is required) but it is written down at the same pitch (an accidental is not required). Interestingly, both naturals are in AsI.

category imprint: Interpretations within context; Differences between sources

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

b. 14

composition: Op. 2, Variations, complete

d3-f3-g3-a3 in AsI

g3-g3-a3-a3 in A (→GEFE,EE,FESB)

category imprint: Differences between sources; Corrections & alterations

issues: Main-line changes

b. 14

composition: Op. 2, Variations, complete

c4 in AsI

Octave in A (→GEFE,EE,FESB)

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes

b. 15

composition: Op. 2, Variations, complete

..

The  restoring b1 in the 2nd half of the bar is absent in all sources. It must be Chopin's mistake, one of his most frequent errors.

category imprint: Interpretations within context; Editorial revisions

issues: Omissions to cancel alteration , Errors of A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE