Issues : Errors of CLI

b. 70

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

d1 in CLI

e1 in FE (→GE,EE

..

The d1 note in CLI, constituting an unjustified irregularity of the figuration in terms of sound, is almost certainly the copyist's error.

category imprint: Differences between sources

issues: Errors of CLI

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. 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