In accordance with the tradition of the genre, these are characterised by sentimentality, intimacy and programmatic tendencies. Characteristic for them is a turbulent middle section and a richly ornamented reprise. However, variability of dynamics and musical course are not appropriate for nocturnes, rather holding on to a particular mood, full of expectation or the past brought to the present. Critical source-edition edited by Jan Ekier and Paweł Kamiński based on manuscripts, copies approved by Chopin himself, and first editions. Its purpose is to present the works of Chopin in authentic form.