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b. 76

composition: Op. 63 No. 1, Mazurka in B major

a-c1 in AI, FE (→EE) & GE3

c1-e1 in GE1 (→GE2)

..

The version of GE1 (→GE2) is a remaining element of a Terzverschreibung committed by the engraver of FE1, which was corrected in the last stage of proofreading in the finished FE; however, through the proof copy serving as the basis for GE1, it found its way to this edition (in FE one can see traces of corrections of this mistake). In GE3 the correct text was most probably drawn from FE2.

category imprint: Differences between sources

issues: Errors in FE , Terzverschreibung error , GE revisions , Authentic corrections of FE

b. 76

composition: Op. 63 No. 1, Mazurka in B major

F-f octave in AI

f in FE (→GE,EE)

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes

b. 78

composition: Op. 63 No. 1, Mazurka in B major

B-major chord on 2nd beat in AI

Diminished seventh chord in FE (→GE,EE)

..

As in bar 10AI includes an earlier version of this bar, based entirely on a B major chord.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Main-line changes

b. 78-80

composition: Op. 63 No. 1, Mazurka in B major

Octaves in AI

Single notes in FE (→GE,EE)

..

In AI Chopin continues leading the bass line in octaves. In the published version the section encompassing bars 77-82 includes bass octaves only in bars 77 and 81, as was the case with bars 9-14.

category imprint: Differences between sources; Corrections & alterations

issues: Bass register changes

b. 79-81

composition: Op. 63 No. 1, Mazurka in B major

..

In the main text we add cautionary naturals to e2 in bars 79 and 81. Both accidentals were also added in GE3, while the latter appears also in AI.

category imprint: Differences between sources; Editorial revisions

issues: GE revisions , Cautionary accidentals