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b. 74-76

composition: Op. 30 No. 4, Mazurka in C# minor

No indications in FC (→GE)

ten. in FE (→EE)

..

Both ten. in bars 74 and 76 were added by Chopin either while proofreading FE or to the basis thereof.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE

b. 74-76

composition: Op. 30 No. 4, Mazurka in C# minor

Long accents in FC (→GE)

Short accents in FE (→EE)

..

The long accents in bars 74 and 76 were added to FC (→GE) by Chopin.

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents , Authentic corrections of FC

b. 75

composition: Op. 30 No. 4, Mazurka in C# minor

..

We add cautionary naturals before e2 and e-e1 in the main text.

category imprint: Editorial revisions

b. 77-78

composition: Op. 30 No. 4, Mazurka in C# minor

..

In the main text we add cautionary accidentals – a  to f1 in bar 77 and a  to e1 in bar 78. The latter was added also in EE.

category imprint: Differences between sources; Editorial revisions

issues: EE revisions

b. 77-78

composition: Op. 30 No. 4, Mazurka in C# minor

No markings in FC (→GE)

Pedalling in FE (→EE)

..

In these bars, the pedalling was almost certainly added in the stage of proofreading FE (→EE). It was absent in [A], since Fontana started writing  in bar 78 in FC and – most probably after having realised his mistake – he stopped, leaving the first line of the letter 'p'. On the other hand, the likelihood that the FE pedalling could have been entered by mistake is zero, since in analogous bars 93-94 we encounter the same difference between FC and FE.  

category imprint: Differences between sources; Source & stylistic information

issues: Authentic corrections of FE