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b. 78

composition: Op. 28 No. 17, Prelude in A♭ major

g1 in chords in A (→FCGE), EE2 & FED

g1 in FE (→EE1)

..

The missing  lowering g1 to g1 is an oversight of the engraver of FE (→EE1). It was corrected only just in EE2, probably on the basis of a comparison with GE1. A flat was also added in FED.

category imprint: Differences between sources

issues: Annotations in teaching copies , EE revisions , Errors in FE , Annotations in FED

b. 79-81

composition: Op. 28 No. 17, Prelude in A♭ major

..

At the beginning of b. 79, in FCI we can see a d2 crotchet combined with a tie to a d2 note in the previous bar, while the R.H. part is written down with the use of two-part notation already in this bar. A d2 crotchet is also at the beginning of b. 81, yet there is no d1, 1st bottom voice quaver.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Main-line changes

b. 88-90

composition: Op. 28 No. 17, Prelude in A♭ major

..

In FCI the R.H. part consists of two voices – the 3-bar-long a1 note and the accompanying quaver voice, which differs from the quavers in the final version only in the missing 1st quaver in b. 88.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Main-line changes