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b. 3

composition: Op. 24 No. 1, Mazurka in G minor

More probably a long accent in A

A short accent in GE

Inaccurate notation of FE

 in EE

..

It is not clear whether the accent written in A was meant to be a short one or a long one. GE (→FE) has a short accent here, and the inaccurate placement of that mark in FE brought about its erroneous interpretation in EE. However, a comparison with the analogous bars 11, 51 and 59 points to the long accent option as being more probable.

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents , Inaccuracies in GE , Inaccuracies in FE , EE inaccuracies

b. 3

composition: Op. 24 No. 1, Mazurka in G minor

 A phrase mark in A

A tie in GE (→FEEE)

..

The slur of A clearly has a phrasing function and relates to whole chords, also the progression of the upper voice g1-a1. Relocating it to the side of the note heads, which was one of routine operations performed by engravers, completely changed the sense of that marking. 

category imprint: Differences between sources

issues: Placement of markings , Errors in GE

b. 3-4

composition: Op. 24 No. 1, Mazurka in G minor

A slur in  A (→GEFE)

No slur in EE

..

In EE, the upper slur in those bars was omitted, probably by mistake.

category imprint: Differences between sources

issues: Errors in EE

b. 3

composition: Op. 24 No. 1, Mazurka in G minor

..

In GE2 (→GE3) a cautionary  was added before a1 on the last chord. That unjustified revision was probably done to imitate Chopin's signs in analogous bars 11, 51 and 59.

category imprint: Differences between sources

issues: GE revisions , Cautionary accidentals

b. 3-4

composition: Op. 24 No. 1, Mazurka in G minor

..

Visible in A is the erased original version of the accompaniment, in which both bars had G crotchet with a staccato dot falling on the 1st beat. Both bars also had pedalling analogous to the pedalling preserved in adjoining bars. The notation before the change was as follows: 

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Accompaniment changes