This volume contains mainly works which to date have not been published or were inaccessible. Alongside the piano score of Berlioz's symphony there are smaller masterpieces (Excelsior!, Resignazione), the Albumblätter written in 1847 in Woronince, the large-scale but incomplete and unrevised Figaro fantasy and the Don Juan fantasy, the long inaccessible piano piece No. 1 in A flat major, and two unpublished works hitherto incorrectly identified by scholars, the Maometto fantasy and the Siege de Corinthe (both transcriptions of works by Rossini), and three other unpublished works: the F major piano piece, the Cavatina (from Meyerbeer Robert le diable) and the Freudvoll und leidvoll penned for Pauline von Iwanowska. The preface that precedes the scores gives an accurate, detailed account of the genesis of the works, and is in itself an absorbing read, though its true significance lies in the editors' new scholarly discoveries.

The hard clothbound and soft paper bound versions give the prefaces to the series and to the volume, and the captions to the facsimiles in three languages (German, English, Hungarian), while the critical notes are only in the clothbound edition, and in English.