Series Editors: John Rink, Jim Samson, Jean-Jacques Eigeldinger. Editorial Consultant: Christophe Grabowski. Key Features of the Edition: Ϋ An introductory essay in English, German and French examining the historicalbackground, compositional features and performance practice issues Ϋ Th e identification of, and adherence to, a single principal source Ϋ A detailed and comprehensive critical commentary Ϋ Chopin's authentic fingerings only Ϋ Emphasis placed on retaining expressive features of the original notation Ϋ Notes on the editorial principles and methodology guidingthe whole project.