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b. 49-50

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

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In AI the part of the L.H. in bars 49-50 is not written out or suggested in any way (similarly in bars 51-63). It is a proof of an increasing draft nature of this manuscript from the middle of the Etude.

category imprint: Differences between sources

issues: Incomplete sources

b. 49-50

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

No pedalling in AI & A

Pedalling in FE (→GE,EE)

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Chopin added pedalling in these bars in a proofreading of FE (→GE,EE). See also bars 51-64.

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 50

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

Fingering in FE (→GE)

category imprint: Differences between sources

issues: EE revisions , Authentic corrections of FE

b. 50

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

..

In A (→FEEE3) there is no  before the 9th semiquaver of the bar (g1). This patent inaccuracy was corrected in GE and EE4.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , GE revisions

b. 51-63

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

..

In AI all this fragment (from bar 49 on) is written without the part of the L.H. It undoubtedly means the use of figures which are similar to the previous ones to such an extent that the composer considered further notes in this respect to be superfluous. In bars 57-63 one can presume the use of the pattern written in bar 64, yet in the previous bars there are no indications on which possible additions could be based.

category imprint: Differences between sources

issues: Incomplete sources