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b. 146-147

composition: Op. 12, Variations in B♭ major

Additional crotchet in sources

Additional tied quaver suggested by editors

..

In the main text, we change, by way of exception, the notation of the tied f quaver in bar 146. The version with a crotchet is typical of Chopin; he would often write down such notes with the help of an additional rhythmic value exceeding the scope of a bar (e.g. at the beginning of the Etude in A, Op. 10 No. 10). In this case, the need to hold this f note to the next bar, which becomes the bass note of the next chord, can be easily overlooked in the original version.

category imprint: Editorial revisions

b. 166

composition: Op. 12, Variations in B♭ major

Dotted crotchet in FE

Crotchet in GE & EE

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In the case of such a small element as an augmentation dot, put in an atypical place, a double, independent oversight cannot be completely ruled out. However, it seems more likely that Chopin added this dot in the last stage of proofreading FE, after the copies serving as the bases for GE and EE had been sent.

category imprint: Differences between sources

issues: Errors in EE , Errors in GE , Authentic corrections of FE