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Articulation, Accents, Hairpins

b. 33

composition: Op. 10 No 9, Etude in F minor

No mark in AI

Long accent in A (→FE)

Short accent in GE & EE

category imprint: Differences between sources

issues: Long accents

b. 33-34

composition: Op. 10 No 9, Etude in F minor

No marks in AI & A

Staccato dots in FE (→GE,EE)

..

Staccato dots over quituplets have been added by Chopin while proofreading FE (→GE,EE).

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE

b. 44

composition: Op. 10 No 9, Etude in F minor

One  sign in A & GE2 (→GE3GE4)

Two signs in FE (→GE1,EE)

..

Doubled  hairpins in FE (→GE1,EE) may be explained with Chopin's proofreading of an inaccurately arranged mark: at the beginning the engraver arranged  too low, so it seems that it refers to the L.H., which Chopin corrected by adding the 2nd mark over the R.H. The change is of an ad hoc nature, hence in the main text we give the version of A. The correct notation was also guessed in subsequent GE,s. 

category imprint: Differences between sources

issues: Inaccuracies in FE , GE revisions , Authentic corrections of FE

b. 48

composition: Op. 10 No 9, Etude in F minor

No mark in AI & FE (→GE,EE)

Long accent in A

Our variant suggestion

category imprint: Differences between sources

issues: Inaccuracies in FE

b. 52

composition: Op. 10 No 9, Etude in F minor

No sign in AI & A (→FEGE,EE)

 suggested by the editors

category imprint: Editorial revisions