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b. 180

composition: Op. 2, Variations, complete

 in A

 in GE (→FE,EE,FESB)

..

It is difficult to say whether the change in the direction of the dynamic hairpin under the second two-note motif was introduced intentionally by Chopin or the reviser of GE1, or whether it is the result of an engraver's mistake. The lack of visible traces of changes in the print rather indicates an adjustment or – what the editors believe is most likely – an error. The engraver could have made the quite common "mirror" error by simply inverting the sign (cf. e.g. Nocturne in D Op. 27 No. 2, b. 6), or perceived this and the previous sign to be a pair  , very common in music in general, and in these Variations in particular. Therefore, we leave in the main text the only undoubtedly authentic version of A.

category imprint: Differences between sources

issues: Errors in GE , GE revisions , Sign reversal

b. 181

composition: Op. 43, Tarantella

..

We add cautionary  before din RH.

category imprint: Editorial revisions

b. 181-182

composition: Op. 43, Tarantella

 
 
 
..

In GE1 slurs over bars 181-182 are parallel and connect upper and lower notes of the dyads accordingly, instead of extending dwith one tie and mark the motif with another just like it is marked in the other sources. In EE the second slur was omitted. 

category imprint: Differences between sources

issues: Inaccuracies in GE , EE inaccuracies

b. 181

composition: Op. 35, Sonata in B♭ minor, Mvt I

No sign in GC (→GE)

Arpeggio sign in FE (→EE)

..

No arpeggio in GC (→GE) is most probably an oversight of the copyist.

category imprint: Differences between sources

issues: Errors of GC

b. 181-184

composition: Op. 35, Sonata in B♭ minor, Mvt I

Slur to bar 184 in GC & FE (→EE)

Slur to bar 182 in GE

..

The slur of GE must be erroneous; the reason a significant part thereof was overlooked could have been an inaccurate notation of GC – the slur is written so low that it almost touches the R.H. slur in the next line.

category imprint: Differences between sources

issues: Errors in GE , Inaccuracies in GC