Issues : Accidentals in different octaves

b. 6-7

composition: Op. 10 No 1, Etude in C major

..

The sharp in front of fin bar 6 is present only in EE, while the  in front of ain bar 7 appears only in the later impressions and editions (EE4 and all GE,s except for GE1). Moreover, in CLI there is no  in front of f1 in bar 6. Those discrepancies does not influence the reading of the text, yet they result from the gradually specified rules governing the accidentals.

category imprint: Source & stylistic information

issues: EE revisions , Accidentals in different octaves , GE revisions

b. 6

composition: Op. 22, Polonaise

..

In FE (→GE1), there is no  raising b2 to b2. The accidental was added in EE and subsequent GE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , Inaccuracies in FE , GE revisions , Errors repeated in GE

b. 6-13

composition: Op. 28 No. 8, Prelude in F♯ minor

..

As was the case in b. 3-4, in A Chopin generally omits accidentals next to the bass quavers if the accidentals have been written an octave higher next to one of the preceding semiquavers. In the discussed bars it concerns in b. 6, c1 and b in b. 7, and g in b. 8, in b. 9 and 11, B and in b. 11, B in b. 12 and G in b. 13. That notation was literally repeated in FE; in FC almost without changes (only one  added next to B in b. 11). The remaining editions added the majority of the necessary accidentals – in EE1 all except for the  next to G in b. 13, while in GE1 all except for the naturals next to f in b. 6 and G in b. 11 (in GE2 the former was added). It is only EE2 that includes a fully correct notation.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , GE revisions , Fontana's revisions , Inaccuracies in A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE

b. 7

composition: Op. 29, Impromptu in A♭ major

 
 
..

A, FE and EE are lacking in the natural raising d3 to d3. The sign was added in GE.
In the entire Impromptus Chopin rather treated the accidentals as valid regardless of the octave in which the altered pitch appeared; therefore, it is difficult to clearly consider the absence of that sign as an omission.

category imprint: Differences between sources; Editorial revisions

issues: Accidentals in different octaves

b. 7-8

composition: Op. 10 No 10, Etude in A♭ major

..

The natural raising a1 to a1 in bar 7 and the  returning d1 in bar 8, omitted in A, were added in a proofreading of FE (→GE,EE).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , Omissions to cancel alteration , Authentic corrections of FE , Inaccuracies in A