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Pitch

b. 49

composition: Op. 63 No. 3, Mazurka in C# minor

g1 in FE (→GE)

g1 in EEW

..

In EEW there is no  lowering g1 to g1, which changes the sound of all three crotchets at this pitch. It is probably a mistake or a revision introduced in the belief that the 1st crotchet in the bottom voice is a repetition of the last note in the preceding bar, as was the case with the two previous bars. See also the next note below.

category imprint: Differences between sources

issues: Errors in EE

b. 49

composition: Op. 63 No. 3, Mazurka in C# minor

..

In the main text we omit the cautionary  to c2, present in all sources.

category imprint: Differences between sources; Editorial revisions

issues: GE revisions , Cautionary accidentals

b. 49

composition: Op. 63 No. 3, Mazurka in C# minor

..

In GE1 (→GE2) the  restoring d2 at the end of the bar was overlooked. The mistake was corrected in GE3.

category imprint: Interpretations within context; Differences between sources

issues: Errors in GE , GE revisions

b. 55

composition: Op. 63 No. 3, Mazurka in C# minor

..

In the main text we add a cautionary  to f2, as it was performed in GE3.

category imprint: Differences between sources; Editorial revisions

issues: GE revisions

b. 57

composition: Op. 63 No. 3, Mazurka in C# minor

g-c1-e in FE (→EEW)

No c1 in GE

..

The missing c1 notes in GE is probably an oversight by the engraver of FE, repeated after the proof copy of FE1, in the finished FE1 corrected by Chopin in the last stage of proofreading. Such a mistake is much more likely when reading a Chopinesque autograph than a printed version – cf., e.g. the Etude in G, Op. 10 No. 5, bar 15, the Etude in E, Op. 10 No. 11, bar 43 or the Concerto in F minor, Op. 21, II mov., bar 41.

category imprint: Differences between sources

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