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b. 127

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

A probable long accent in A

A possible short accent in A (→GEFEEE)

..

The accent type that Chopin used in this bar is not obvious. There are more arguments, both graphic and musical, for the long accent option.  GE (→FEEE)  all have short accents.

category imprint: Differences between sources

issues: Long accents

b. 128

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

A very probable long accent in A

 No accent mark in GE1 (→FEEE)

Possibly a short accent in A (→GE2GE3)

..

The type of accent used by Chopin in A is not quite obvious, yet both its shape and the comparison with analogous bars (120 and 122) clearly point to a long accent. In GE1 (→FEEE) the accent was omitted and in GE2 (→GE3) a short one was added. 

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents , Errors in GE

b. 128

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

A probable short accent in A (→GEFEEE)

A possible long accent in A

..

The accent mark in A is short, yet it does not differ much from the other two accents in bars 127-128 that are most probably long ones. However, a comparison with analogous bars 120, 122 and 134 convincingly suggests a short accent here. 

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents

b. 129-130

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

in A

in GE1 (→FEEE)

in GE2 (→GE3)

An alternative proposed by the editors

..

In  A, the dashes marking the extent of dim. appear only in bar 129. This may suggest limiting the binding scope of the dynamic change to that bar alone, which does not seem justified from the musical point of view considering the  in bar 131. In our opinion, inaccurate notation may be suspected here, and therefore we suggest adding the dashes in bar 130. In GE (→FEEE) the dashes were omitted entirely, a frequent error found in the editions. In GE2 (→GE3) Chopin's dim. was replaced with the equivalent abbreviation dimin.

category imprint: Differences between sources; Editorial revisions

issues: Inaccuracies in GE , GE revisions

b. 131-142

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

 in A

EE1 (→EE2)

..

Over this entire section in A the asterisks  are placed at the very end of each bar after the 3rd crotchet of the L.H. (with the exception of bar 138) and this is definitely the only authentic notation. In GE that notation was reproduced only in bars 132-133 and 136; in the remaining bars the asterisks are placed before the 3rd crotchet. In FE only the  in bar 133 follows the notation of A, and EE has the asterisks after the 3rd crotchet in bars 132-133 only. Moreover, in EE1 (→EE2) the asterisk was mistakenly placed in bar 135 instead of 136, which was corrected in EE3.

category imprint: Differences between sources

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