Issues : Accompaniment changes

b. 75

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

C1-C octave in AI

C in FE (→GE,EE)

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Bass register changes

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. 81

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

Rest in AI & FE1 (→GE)

F in FE2 (→EE)

..

As in bar 75, Chopin added a crotchet to the L.H. part (instead of the rest) on the 3rd beat of the bar while proofreading FE2 (→EE). 

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Authentic corrections of FE

b. 82

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

Chord with d1 in AI

No d1 in FE (→GE,EE)

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes