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b. 8-9

composition: Op. 10 No 11, Etude in E♭ major

..

In the main text we adopt the quaver tie system applied by Chopin in A. In FE (→GE,EE) the ties in the L.H. may have been changed due to graphic difficulties, embracing three last quavers in bar 8 with one tie and providing the 1st quaver in bar 9 with a stem. In GE3 a similar tie system was applied in bar 8 also in the case of the R.H. 

category imprint: Source & stylistic information

issues: Inaccuracies in FE , GE revisions

b. 51

composition: Op. 10 No 11, Etude in E♭ major

g2 tied in A & FE2

g2 repeated in FE1 (→GE,EE

..

Lack of the tie sustaining g2 in FE1 (→GE,EE) is certainly an oversight, as it is proved by the addition of the sign in FE2.

category imprint: Differences between sources

issues: Errors in FE , Authentic corrections of FE