An original concept: in one volume, a study-size score of a major musical work, and a comprehensive body of tools for the study of that work.
A score embodying the best available musical text.
Historical background—what is known of the circumstances surrounding the origin of the work, including (where relevant) original source material.
A detailed analysis of the music, by the editor of the volume or another well-known scholar.
Other significant analytic essays and critical comments, exposing the student to a variety of opinions about the music.