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b. 1

composition: Op. 28 No. 13, Prelude in F♯ major

No fingering in A (→FE,FCGE)

Fingering in EE

..

Nothing indicates that the fingering of EE could be authentic, although it is probably compliant with the Chopinesque idea. The presence of both a slur and a legato indication suggests the use of "harmonic legato" (holding elements of a chord with fingers) and the following fingering: (it was easier on the then contemporary pianos, which had narrower keys). 

category imprint: Differences between sources

issues: EE revisions

b. 1

composition: Op. 28 No. 12, Prelude in G♯ minor

..

After Presto, in A one can see that the further part of the indication was crossed out, most probably con fuoco.

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Deletions in A , Changes of tempo markings

b. 1-8

composition: Op. 28 No. 12, Prelude in G♯ minor

..

In A (→FC) these bars are numbered from 1 to 8. Those digits were then used to mark b. 41-48 in an abridged manner. Fontana used the first two digits to mark in such a way b. 9-10 too, which resulted in GE omitting the accents and moving the cresc. from b. 10 to b. 11.

category imprint: Differences between sources; Source & stylistic information

issues: Abbreviated notation of A , Fontana's revisions

b. 1

composition: Op. 28 No. 12, Prelude in G♯ minor

before 3rd beat in A

after 3rd beat in FC (→GE)

on 3rd beat in FE (→EE)

..

The fact that the  mark was placed in FC (→GE) further probably results from an imprecise notation of A, in which the 3rd L.H. crotchet is under the 6th R.H. quaver, since its initial version was crossed out (it was probably a G-d fifth). Consequently, due to the  mark being so close to the next  mark, it seems that the pedal encompasses the entire bar. 

category imprint: Differences between sources

issues: Inaccuracies in FC

b. 1

composition: Op. 28 No. 12, Prelude in G♯ minor

..

The 4th quaver in FE is an erroneous f1, as a result of which the next quaver is also wrong – it is an e1 instead of an e1. A comparison with analog. b. 9, 41 and 49 suggests a mistake; another argument is the presence of a , completely unjustified before f1. The mistake was rectified in EE; a corresponding correction is also in FED.

category imprint: Interpretations within context; Differences between sources

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