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b. 4-5

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

First slur to a1 in A, literal reading

First slur to end of bar 4 in FC (→GE)

Continuous slur to bar 10 in FE (→EE)

..

The range of the slur in b. 4 is unclear in A – it can be interpreted as a slur dragged to the a1 crotchet or as an unfinished slur/tenuto encompassing that crotchet along with the bottom voice quavers that fill it (as was reproduced by Fontana in FC). As it is slurs/tenutos that prevail in similar situations in the entire Prelude – particularly consistently from b. 65 on – in the main text we give such a slur. The continuous slur of FE (→EE), certainly contrary to the notation of A, probably resulted from the engraver's carelessness.

category imprint: Graphic ambiguousness; Differences between sources

issues: Errors in FE , Inaccurate slurs in A , Tenuto slurs

b. 4

composition: Op. 28 No. 14, Prelude in E♭ minor

..

The 4th L.H. quaver is written in A slightly to low, so as to be reproduced in FE (→EE1) as d (in spite of a distinct e1 in the R.H.). EE2 corrected the error.

category imprint: Graphic ambiguousness; Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , Inaccurate note pitch in A , Errors repeated in EE

b. 4

composition: Op. 28 No. 15, Prelude in D♭ major

..

In EE the minim c1 is mistakenly dotted.

category imprint: Interpretations within context; Differences between sources

issues: Errors in EE

b. 4

composition: Op. 28 No. 18, Prelude in F minor

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A (→FE) has a cautionary  before the 7th L.H. semiquaver, a1. The accidental was omitted in FC (→GE1), however, EE and GE2 have flats there in both the L.H. and R.H. parts. We also include these signs in the main text.

category imprint: Differences between sources; Editorial revisions

issues: EE revisions , GE revisions , Cautionary accidentals , Errors of FC

b. 4-5

composition: Op. 23, Ballade in G minor

..

In A, bar 4 ends the line. The slur at the end of that bar very clearly suggests that it should be continued; however, it is not confirmed by the slur in b. 5, which begins over the 1st note in the bar. According to us, it is the slur in b. 4 that is reliable, which is how it was interpreted in FE (→GE,EE). 

category imprint: Graphic ambiguousness

issues: Uncertain slur continuation