The names of publishers within witness overviews have been standardised where necessary and may not correspond exactly to their presentation in given scores. This is because of the variable formats adopted by some publishers, e.g. Friedrich Hofmeister, whose name appears as ‘Fred. Hofmeister’ on the title page of Op. 1 (second German edition), ‘Fréd. Hofmeister’ on the title page of Op. 5 (German first edition), and as ‘Fredéric [sic] Hofmeister’ on the title page of Op. 51 (German first edition). Comparison between the source description and the relevant edition is therefore essential. See Historical background for general information about Chopin’s publishers, along with the list of publishers of Chopin’s music and associated sigla.