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b. 31

composition: Op. 50 No. 2, Mazurka in A♭ major

Slur in A1

Slur over lower voice in FE (→EE)

No slur in GE

..

In the main text we reproduce the motivic slur of A1, which clearly begins over the dminim. The absence of the mark in GE is probably an oversight of the engraver or perhaps of Chopin himself.

category imprint: Differences between sources

issues: Inaccuracies in FE

b. 31

composition: Op. 50 No. 2, Mazurka in A♭ major

..

In A1 (→FEEE) there is a cautionary  before the dminim. The absence of the sign in GE may mean that Chopin realised that it is superfluous here while writing [A2].

category imprint: Differences between sources

issues: Cautionary accidentals , Last key signature sign

b. 32-34

composition: Op. 50 No. 2, Mazurka in A♭ major

3 slurs in A1

Slur in bar 34 in FE (→EE)

Slurs in bars 32-33 in GE

..

Out of the three slurs of A1, FE (→EE) overlooked two. It allows us to assume that the absence of the slur in b. 34 is also a result of an oversight, most probably of the engraver of GE.

category imprint: Differences between sources

issues: Errors in FE

b. 36-37

composition: Op. 50 No. 2, Mazurka in A♭ major

No slur in A1 (→FEEE)

Slur in GE

..

In the main text we include the slur of GE, added almost certainly by Chopin in [A2] or in the proofreading of GE1. See also b. 28-29.

category imprint: Differences between sources; Corrections & alterations

b. 36-37

composition: Op. 50 No. 2, Mazurka in A♭ major

No marks in GE

Short & long accent in FE

Short accent in bar 36 in EE

..

In the main text we include the long accents written in A1. An analysis of the crossings-out and corrections in that autograph suggests that Chopin added the accents while performing the last corrections in the finished manuscript, probably after [A2] had already been written. The composer's intention is also confirmed by possible Chopinesque proofreading of FE in b. 37: the fact that the accent was added in the last stage of proofreading is indicated by the absence of the mark in EE.

category imprint: Differences between sources; Corrections & alterations; Source & stylistic information

issues: Long accents , Corrections in A , EE inaccuracies , Deletions in A , Authentic corrections of FE