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b. 71

composition: Op. 10 No 1, Etude in C major

b2 in CLI

g2 in FE (→GE,EE

..

bin CLI is almost certainly a mistake of the copyist who allegedly looked at the bar which is two bars behind this one and mistakenly wrote here the 3rd group of semiquavers from bar 69.

category imprint: Differences between sources

issues: Errors of CLI

b. 71

composition: Op. 10 No 1, Etude in C major

f2 in CLI

g2 in FE (→GE,EE

..

The version of CLI is the original one, drawn from [AI]. It is confirmed by the traces of deleting f2 visible in FE

category imprint: Differences between sources

issues: Main-line changes

b. 71

composition: Op. 10 No 1, Etude in C major

..

We add a cautionary  before g. The sign was already added in GE2 – and subsequent ones – and in EE4.  

category imprint: Differences between sources; Editorial revisions

issues: EE revisions , GE revisions

b. 72

composition: Op. 10 No 1, Etude in C major

..

In CLI there is no  returning f1, which is an obvious error. 

category imprint: Interpretations within context; Differences between sources

issues: Errors of CLI

b. 73

composition: Op. 10 No 1, Etude in C major

..

We add a cautionary  before e. The sign was already added in GE2 – and subsequent ones – and in EE4.

category imprint: Differences between sources; Editorial revisions

issues: EE revisions , GE revisions