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b. 254-255

composition: Op. 19, Bolero

..

GE has cautionary  next to gin bars 254 and 255. These superfluous signs were also in FE, yet they were removed, most probably in the last proofreading. In EE3, the reviser added both signs, perhaps by comparison with GE.

category imprint: Differences between sources; Corrections & alterations

issues: EE revisions , Authentic corrections of FE , FE revisions

b. 255

composition: Op. 19, Bolero

..

FE (→GE,EE) has a cas the 2nd semiquaver. It is a typical Terzverschreibung error of the engraver (or perhaps of Chopin in the Stichvorlage for FE). Chopin corrected the erroneous note in pencil in FES.

category imprint: Differences between sources; Editorial revisions

issues: Annotations in teaching copies , Errors in FE , Errors in EE , Errors in GE , Terzverschreibung error , Annotations in FES

b. 256-257

composition: Op. 19, Bolero

..

In FE, there are visible traces of removal of superfluous cautionary  next to all bin bars 256 and 257. The signs were probably removed in the first proofreading of FE, since they are absent both in GE and EE (cf. bars 254-255).

category imprint: Source & stylistic information

issues: Cautionary accidentals , Authentic corrections of FE , FE revisions

b. 258-259

composition: Op. 19, Bolero

in bar 258 in FE (→EE)

in bar 259 w GE

..

In GE is only in the middle of bar 259, which certainly does not correspond to Chopin's intention.

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 259

composition: Op. 19, Bolero

A-e-a in FE (→EE)

A-a in GE

..

In GEis missing in the 1st chord, probably by mistake. 

category imprint: Differences between sources

issues: Errors in GE