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b. 1

composition: Op. 2, Variations, complete

Adagio in AsI

Largo in remaining sources

..

It draws attention that the change only concerns the nature of this part of the introduction, as the tempo – defined by the metronome – has remained unchanged.
Moreover, in AsI Chopin did not call the opening part an Introduction (or any other term).

category imprint: Differences between sources; Corrections & alterations

issues: Metronome tempos , Changes of tempo markings

b. 1-17

composition: Op. 2, Variations, complete

category imprint: Differences between sources; Corrections & alterations; Source & stylistic information

b. 2

composition: Op. 2, Variations, complete

..

In the sources, there is no  restoring d1 on the 4th beat of the bar. The mistake resulted from the way the piano reduction was prepared – the R.H. top voice corresponds to the Violin II part, in which there is no need for a , since it does not feature a d1.

category imprint: Editorial revisions

issues: Omissions to cancel alteration , Errors of A

b. 3

composition: Op. 2, Variations, complete

..

In the main text we add cautionary flats to b and b1. The former was also added in GE2 (→GE3,FESB).

category imprint: Differences between sources; Editorial revisions

issues: GE revisions , Cautionary accidentals

b. 4

composition: Op. 2, Variations, complete

in A (→GE1EE1)

F in GE2 (→GE3,FESB), FE & EE2 (→EE3)

..

We consider the version of A (→GE1) to be erroneous, which is indicated by the orchestral part – an F in cellos and double basses is both in the later version of AsI and in the voices of GE and FE. The correct version of FE almost certainly resulted from Chopin's correction, probably introduced still into the copy of GE1 serving as the basis for that edition – there are no visible traces of changes in print. The corrections present in GE2 (→GE3,FESB) and EE2 (→EE3) can be considered revisions on the basis of orchestral parts. In the case of GE2, Chopin's intervention is also likely; his participation in the preparation of that edition is generally questionable, yet it cannot be excluded to a limited extent.
In the basic version of AsI, which is an earlier edition of this orchestral introduction, neither of these versions can be used.

category imprint: Differences between sources

issues: EE revisions , Terzverschreibung error , GE revisions , Errors of A , Authentic corrections of FE , Authentic corrections of GE