This is an "Urtext" edition. It offers an authoritative text of Franz Liszt's organ music and thus a basis for performing it free of distortions. The edition comprises nine volumes of music and one supplementary volume containing detailed notes on the genesis and the sources of individual works, essays on organs and organists in Liszt's time, illustrations, facsimile reproductions of the most important manuscripts, as well as an account of the editorial principles applied, a complete list of contents and critical notes on every work.
The complete edition of Liszt's organ music comprises: the original compositions for organ solo; arrangements for organ of Liszt's own works made or revised by the composer; works for organ with one obbligato instrument; works for voice(s) and organ (harmonium); and Liszt's organ transcriptions of music by other composers. The Appendix of the sixth volume also contains Liszt's works for harmonium (or piano).