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b. 31-32

composition: Op. 63 No. 1, Mazurka in B major

dim. in AI

dim. - - in FE (→GE,EE)

category imprint: Differences between sources; Corrections & alterations

b. 32

composition: Op. 63 No. 1, Mazurka in B major

Double bar line, no key-signature change in AI

Single bar line, key-signature change in FE (→EE)

Double bar line, key-signature change in GE

..

The change of key introduced in [A] (→FEGE,EE) undoubtedly facilitates the interpretation of the text of bars 33-52. The four-bar sections of the subsequent part are no longer in the key of A major, hence keeping three sharps in the key signature plays a structural rather than a tonal role – the key signature of B major is restored upon the return of the main theme of the Mazurka in bar 69, and not upon the return of the key of B major, which occurs already in bar 53.
In [A] (→FEEE) Chopin, as was his habit, did not use a double bar line despite the change of key signature. GE adding a double bar line adjusts the notation to the traditional norm.

category imprint: Differences between sources; Corrections & alterations

b. 32

composition: Op. 63 No. 1, Mazurka in B major

 in AI, literal reading

Long accent in AI, contextual interpretation

No marking in FE (→GE,EE)

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents

b. 33-68

composition: Op. 63 No. 1, Mazurka in B major

..

In AI the middle section of the Mazurka, bars 33-68, is written down – like the outer sections – in a key signature containing 5 sharps, and in order to write d and a notes, naturals put next to individual notes are applied. The notation is generally careful, and we indicate a few certainly overlooked naturals to A or a notes in the notes on bars 34, 38, 44 and 52 (see also bars 36 and 46).
Chopin committed more inaccuracies in the second part of this section (from bar 53), in the version prepared for print. 

category imprint: Differences between sources; Corrections & alterations

issues: Accidental below/above the note

b. 33-34

composition: Op. 63 No. 1, Mazurka in B major

  in AI

No markings in FE (→GE,EE)

Our variant suggestion

..

The missing pedal markings in these bars in the sources are most probably Chopin's oversight in [A], since the marks are present in all three analogous places (bars 37, 43, 47). Due to the above, in the main text we give (in a variant form) the indication written down in AI.

category imprint: Differences between sources; Editorial revisions