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b. 71

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

..

In the main text we omit the unjustified (cautionary?)  before a1 that appears in all editions.

category imprint: Editorial revisions

issues: Cautionary accidentals , Last key signature sign

b. 71

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

b1 in AI

Triad in FE (→GE,EE)

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes

b. 72

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

Quaver g in AI

Semiquaver in FE (→EE,GE1GE2)

Semiquaver g in GE3

..

The g note present in AI and in all analogous bars 4, 12 and 80 and in bars 2, 10, 70 and 78 proves that we are most probably dealing with a Terzverschreibung in FE. The b note featured in this edition does not raise any doubts in terms of harmony – B or b notes are present in chords on the 2nd beat of the bar in the majority of analogous bars – as a result of which they were repeated in almost all subsequent editions. The exception is GE3, in which – most probably on the basis of a comparison with analogous bars – g was introduced, and this is the version we adopt to the main text.
The AI quaver having been replaced by a semiquaver in the published version – see bar 70.

category imprint: Differences between sources

issues: Errors in FE , Terzverschreibung error , GE revisions , Dotted or even rhythm

b. 72

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

category imprint: Interpretations within context; Differences between sources

issues: Errors in EE , Terzverschreibung error

b. 73-74

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

Rests & F-f crotchet in AI

3 crotchets including F1-F in FE1 (→GE)

3 octaves including F1-F in FE2 (→EE)

..

With respect to the version of AI, in the published text the transition to the G minor chord in bar 73 was enriched by a chromatic bass sequence: F-F-G. However, the goal of the Chopinesque correction to FE2 (→EE) remains unclear – on the one hand, combining (with an added stem) the R.H. f quaver with the L.H. F crotchet prolongs the sound of f, which, however, is poorly audible in this register along with the prescribed pedalling, but on the other hand it also suggests that this f should be performed with the L.H., which could be regarded as facilitating the R.H. part.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Authentic corrections of FE