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b. 65-66

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

E-e in CLI

E1-E in FE (→GE) & EE3 (→EE4

E1-E in EE2

..

The version of CLI is definitely original. In the main text we give the more subtle version of FE (→GE,EE; in EE2 without the tie sustaining E).

category imprint: Differences between sources; Source & stylistic information

issues: Errors in EE , Accompaniment changes , Abbreviated octaves' notation

b. 66

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

..

CLI has undoubtedly the erroneous cas the 12th semiquaver.

category imprint: Interpretations within context; Differences between sources

issues: Errors of CLI

b. 67-76

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

No fingering in CLI

Fingering in FE (→GE)

Fingering in EE

..

The fingering of FE (→GE) is certainly authentic. EE also includes it, yet in bar 74 the digit over the 5th semiquaver was omitted, probably inadvertently.

category imprint: Differences between sources

issues: Errors in EE

b. 67-76

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

No pedalling in CLI

Pedalling in FE (→GE,EE

..

In bars 67-71 and 73-76 we give the undoubtedly authentic pedalling of FE (→GE,EE) in the main text.

category imprint: Differences between sources

b. 68-76

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

..

The octaves in bars 68 and 72 in CLI are written in an abbreviated form – only the upper note and below it. In FE the notation was preserved only in bar 72.

category imprint: Source & stylistic information

issues: Abbreviated octaves' notation