Issues : Errors of A

b. 3

composition: Op. 24 No. 4, Mazurka in B♭ minor

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A  heightening g1 to g1 is missing from all the sources. The use of g1 between f1 and g1 is so obvious in this context that the error went unnoticed for several dozen years.  

category imprint: Editorial revisions; Source & stylistic information

issues: Errors of A , Last key signature sign

b. 3

composition: Op. 26 No 2, Polonaise in E♭ minor

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The overlooked in A flats restoring A and a on the 3rd beat were added in FE (→EE,GE). Similarily in the subsequent instances of this bar – bars 51, 107 & 155 (in bar 155 correction omitted in FE).

category imprint: Interpretations within context; Differences between sources

issues: Omissions to cancel alteration , Errors of A , Authentic corrections of FE

b. 3

composition: Op. 25 No 8, Etude in D♭ major

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In A (→GE1), FE and EE there is no  returning f2 in the penultimate sixth. This patent error was noticed only in GE2 (→GE3) on the occasion of a thorough revision of accidentals – cf. the notes concerning the natural and flat before the previous sixth. 

category imprint: Interpretations within context; Differences between sources

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

b. 3-4

composition: WN 37, Lento con gran espressione

c1 repeated in A1

c1 tied in CJ, CK (→CB) & EL

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The missing tie of c1 is probably Chopin's oversight in A1, hence we consider it acceptable to add it in the text of A1.

category imprint: Differences between sources

issues: Errors of A

b. 3

composition: Op. 28 No. 22, Prelude in G minor

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In A (→FE) there is no  raising f1 to f1. The manifest inadvertence was rectified in FC (→GE) and EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors of A , Fontana's revisions , Errors repeated in FE