This calls up national feelings in a slightly sentimental way. The stile brillant appeared here not just in full bloom, but sweetens and even the folky Dumka has been transformed into a romanticising nocturne. The orchestra merely accompanies, providing the piano with an oneiric shell. Critical source-edition edited by Jan Ekier and Pawel Kaminski based on manuscripts, copies approved by Chopin himself, and first editions. Its purpose is to present the works of Chopin in authentic form.