(PWM). Inspired by texts by Polish poets contemporary to Chopin, improvised "with the book of poetry in front of him" at emigrants' meetings, unfinished, some noted only in sketch form, never published during the composer's lifetime, though some instantly gained huge popularity in the form of reductions. In Chopin's creative output they hold a marginal position, among Polish songs they are outstanding. Critical source-edition edited by Jan Ekier and Kamenski based on manuscripts, copies approved by Chopin himself, and first editions. Its purpose is to present the works of Chopin in authentic form.