Issues : Cautionary accidentals

b. 51

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

..

In the main text we add a cautionary  to b, as it was performed in GE3. The accidental is also in AI, perhaps by mistake, since it does not include the necessary  lowering a to a

category imprint: Differences between sources; Editorial revisions

issues: GE revisions , Cautionary accidentals , Omission of current key accidentals , Accidental below/above the note , Last key signature sign

b. 53-56

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

..

In AI, in each of these bars, Chopin wrote a  (cautionary?) to a. The fact that this unnecessary accidental was repeated a few times suggests that the composer was uncertain about the presence of the  raising a in the key signature of the B major/G minor keys. Cf. the Etude in G minor, Op. 25 No. 6, bars 7-8.

category imprint: Source & stylistic information

issues: Cautionary accidentals , Last key signature sign

b. 71

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

..

In the main text we omit the unjustified (cautionary?)  before a1 that appears in all editions.

category imprint: Editorial revisions

issues: Cautionary accidentals , Last key signature sign

b. 73

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

category imprint: Differences between sources; Corrections & alterations

issues: Cautionary accidentals

b. 79-81

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

..

In the main text we add cautionary naturals to e2 in bars 79 and 81. Both accidentals were also added in GE3, while the latter appears also in AI.

category imprint: Differences between sources; Editorial revisions

issues: GE revisions , Cautionary accidentals