There is no reason to doubt the authenticity of the extended version of semiquaver figures given in the edition of the Concerto edited by Mikuli (see bar 153) as a 'Chopinesque variant.' However, it is uncertain whether the egualmente indication and the fingering are also authentic – the fact that, e.g. not all fingerings come from Chopin is openly discussed by Mikuli in the preface to his edition: '[...] the fingering of the edition comes largely from Chopin; wherever this is not the case, it is at least written according to his rules [...].'*
* "[...] der Fingersatz dieser Ausgabe grossentheils von Chopin selbst herrührt, wo dies aber nicht der Fall, wenigstens seinen Grundsätzen entsprechend notirt ist [...]"
Compare the passage in the sources»
category imprint: Differences between sources
issues: Authentic post-publication changes and variants
notation: Pitch