The edition has been based primarily on Chopin's autograph manuscripts, copies approved by him and first editions.
The principal aim of the Editorial Committee has been to establish a text which fully reveals Chopin's thoughts and corresponds to his intentions as closely as possible.
The full version of this edition includes 21 volumes.
Nocturn in B flat minor Op. 9 No.1
Nocturn in E flat mmajor Op.9 No.2
Nocturn in B flat major Op. 9 No. 3
Nocturn in F major Op.15 No.2
Nocturn in F sharp major Op. 15 No.2
Nocturn in G minor Op. 15 No. 3
Nocturn in C sharp minor Op.27 No. 1
Nocturn in D flat major Op. 27 No. 2
Nocturn in B flat major Op.32 No.1
Nocturn in A flat major Op. 32 No. 2
Nocturn in G minor Op. 37 No. 1
Nocturn in G major Op. 37 No. 2
Nocturn in C minor Op. 48 No.1
Nocturn in F sharp minor Op.48 No.2
Nocturn in F minor Op. 55 No. 1
Nocturn in E flat major Op. 55 No. 2
Nocturn in B flat major Op. 62 No. 1
Nocturn in E major Op. 62 No. 2
Nocturn in E minor Op. 72 No. 1