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b. 70

composition: Op. 25 No 10, Etude in B minor

No mark in GC (→GE1)

Accent on third beat in FE

Accent on first beat in EE

..

In the main text we give an accent on the 3rd beat of the bar, compatible with the sign present in all sources in analogous bar 50. The long accent ( hairpins ?) visible in EE may be authentic – cf. the note in the next bar.

category imprint: Differences between sources

issues: GE revisions

b. 71

composition: Op. 25 No 10, Etude in B minor

Crotchet with mordent in GC (→GE) & EE2 (→EE3)

Crotchet without mordent in FE

Quavers with mordent in EE1

..

The version of GC (→GE) and FE, identical with the version of analogous bar 51, is most probably earlier (omission of mordent in FE is almost certainly a mistake). Lack of corrections in GC proves that the version of this copy was also in the autograph rewritten by the copyist. The version with quavers only present in EE1 must have been introduced by Chopin instead of the previous one in the manuscript being the base text to this edition. Therefore we give this version as the later one in the main text. This type of breaking a longer rhythmic value is a characteristic for Chopin way of enriching the melodic line at the time of repeating phrases (cf., e.g., Mazurkas in A major, Op. 7 No. 4, bars 25-32, G minor, Op. 24 No. 1, bars 57 and 59C major, Op. 24 No. 2, bars 97-104C minor, Op. 50 No. 3, bars 77-88, A minor, Op. 59 No. 1, bars 3-6 and 27-30, Waltz in E major, Op. 18, bars 37-51).
EE2 (→EE3) introduced an analogous version to bar 51, most probably under the influence of FE.

category imprint: Differences between sources; Corrections & alterations

issues: Errors in FE , Main-line changes

b. 74-77

composition: Op. 25 No 10, Etude in B minor

Slurs in GC (literal reading→GE1)

Slurs in GC, contextual interpretation

Slurs in FE

Slur in EE & GE2 (→GE3)

..

When interpreted literally, the short slurs of GC (→GE1) are almost certainly erroneous due to the breaking of the slur between bars 73-74, contrary to the construction of the phrase. The suggested interpretation is based on the original slurring of analogous bars 55-57, in which Chopin combined the one-bar slurs in bars 55-56, written initially in GC. The phrasing may be considered as alternative with respect to the main text, based on FE and compatible with the slurring of analogous bars 54-57. The continuous slur in GE2 (→GE3) is a result of an arbitrary revision, yet the same slur in EE may be authentic.

category imprint: Interpretations within context; Differences between sources; Corrections & alterations

issues: GE revisions , Errors of GC

b. 76

composition: Op. 25 No 10, Etude in B minor

d-e tie in GC (→GE1GE2), FE & EE

No tie in GE3

..

Deletion of the tie of d-e in GE3 is a result of a revision aiming at harmonising bars 56 and 76, this time on the basis of the version of GC in bar 56.

category imprint: Differences between sources

issues: GE revisions

b. 78

composition: Op. 25 No 10, Etude in B minor

No slur in GC (→GE) & EE

Slur for lower voice in FE

..

The slur embracing the phrase of the middle voice in the R.H. in bars 78-80 was added by Chopin most probably in the proofreading of FE.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE