mUltimate Chopin

Op. 10 No 1, Etude in C major

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Issues : Accompaniment changes

b. 77-79

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

C in CLI

Octave in FE (→GE,EE) 
..

It is hard to definitely determine whether the lack of upper octaves in CLI is a result of the copyist's error or – which seems to be more plausible – the original version. 

category imprint: Differences between sources

issues: Accompaniment changes