A Warsaw correspondent of the "Leipzig Allgemeine musikalische Zeitung" says in the course of one of his letters:-- The Academist Chopin performed the first Allegro of Moscheles' Pianoforte Concerto in F [G ?] minor, and an improvisation on the aeolopantaleon.

This instrument, invented by the cabinet-maker Dlugosz, of this town, combines the aeolomelodicon [FOOTNOTE: An instrument of the organ species, invented by Professor Hoffmann, and constructed by the mechanician Brunner, of Warsaw.] with the piano- forte....Young Chopin distinguished himself in his improvisation by wealth of musical ideas, and under his hands this instrument, of which he is a thorough master, made a great impression.
Unfortunately we learn nothing of Chopin's rendering of the movement from Moscheles' Concerto.

Still, this meagre notice, written by a contemporary--an ear-witness, who wrote down his impressions soon after the performance--is very precious, indeed more precious than the most complete and elaborate criticism written fifty years after the occurrence would be.

I cannot help thinking that Karasowski somewhat exaggerates when he says that Chopin's pianoforte playing transported the audience into a state of enthusiasm, and that no concert had a brilliant success unless he took part in it.

The biographer seems either to trust too much to the fancy-coloured recollections of his informants, or to allow himself to be carried away by his zeal for the exaltation of his hero.