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Verbal indications

b. 51-67

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

..

In AI there are no performance indications (apart from the slur in bar 56 and accents in bars 61 and 63, which we discuss separately) from bar 37 (on this page from bar 51). As a result of this, we do not consider this version as an alternative to the remaining sources and we do not discuss it in detailed notes. 

category imprint: Differences between sources

b. 56

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

No marking in AI & A

 in FE (→GE,EE)

..

While proofreading FE (→GE,EE), Chopin underlined the climax with .

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 61

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

 in A

 in FE (→GE,EE)

..

According to us, it is highly unlikely that  present in A was changed in FE (→GE,EE) to  as a result of Chopin's intervention. The dynamic contrasts in bars 29-32, 33-36 and 56-60 draw on the rule of double juxtaposition of the same indications ( or ). The version of A is compatible with this rule also in bars 61-64, while in FE it was broken and in a way which does not correspond to the musical flow. The engraver of FE could have simply forgotten about the 2nd .

category imprint: Differences between sources

issues: Errors in FE