Issues : Annotations in FES

b. 5-13

composition: Op. 30 No. 1, Mazurka in C minor

 in FC (→GE)

No indications in FE (→EE)

in b. 5 in FES

..

The contrasting dynamic indications in bars 5, 9 and 13 were most probably added to FC by Chopin, as were many other markings (e.g. dynamic hairpins or accents). However, one has to emphasise that these marks, although their shape is the same as of some undoubtedly Chopinesque ones (e.g.  in the autograph of the Scherzo in B minor, Op. 31, bar 25,  in the autograph of the Etude in A, Op. 25 No. 1, bars 9 and 22,  in the autograph of the Etude in F minor, Op. 10 No. 9, bars 29 and 33 or in the later autograph of the Polonaise-Fantaisie, Op. 61, bar 1), are also very similar to the Fontana ones. The fact that they could have been written in Chopin's hand is indicated by, e.g. their more delicate, as if pale notation – cf. the analogous markings in the Mazurka in B minor no. 2, written certainly by Fontana.
In bar 5  was added in FES, which, to a certain extent, confirms Chopin's intention to contrast the particular theme phrases, dynamically and probably also expressively.
See also bars 37-45. 

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FES , Authentic corrections of FC

b. 6

composition: Op. 25 No 8, Etude in D♭ major

..

FE features eas the top note of the sixth beginning the 2nd half of the bar. This patent error was corrected in both pupils' copies, including annotations in this Etude FED and FES.

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , Errors in FE , Annotations in FED , Annotations in FES

b. 6

composition: Op. 21, Concerto in F minor, Mvt II

Fingering written into FES

No teaching fingering

..

The fingering digit, written with a quill pen most probably by a pupil, was probably added in place of an entry written in pencil by Chopin.

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FES

b. 6-7

composition: Op. 28 No. 6, Prelude in B minor

Fingering written into FEJ, probable reading

Fingering written into FES

No fingering in A (→FE,FCGE)

Fingering in EE

..

In FEJ the mark referring to the e1 crotchet is illegible. According to us, it may be a fingering digit (2), written instead of a 'one' – it would then be the same notation that can clearly be seen in FES. The 1st finger on e1 in b. 6 visible in EE most probably also indicates that fingering.

category imprint: Graphic ambiguousness; Differences between sources; Corrections & alterations; Source & stylistic information

issues: Annotations in teaching copies , EE revisions , Annotations in FES , Annotations in FEJ

b. 7

composition: Op. 25 No 9, Etude in G♭ major

Fingering written into FES

No teaching fingering

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FES