[4] One of the editorial directors, Wolfgang Rehm, writes that "The NMA aims to be a historical-critical edition and to offer as such the latest state of philological-musicological procedure as well as practical knowledge (particularly with regard to performance) of Mozart's creative production.
[10] Along similar lines, Landon comments that "recently discovered manuscript sources have rendered even the NMA's edition of the Linz symphony obsolete.
"[11] It is perhaps inevitable that new finds will in time render some aspects of the NMA open to reconsideration, since research and discovery regarding Mozart's work remain an ongoing process.
[12] However, Neumann's strictures do not seem particularly severe, and in his "Preface" he writes that, although he attempted where possible to view primary sources of Mozart's music, where this was not possible, the NMA "offered an indispensable supplement".
[14] Starting December 12, 2006, scans of the vast majority of the Neue Mozart-Ausgabe are also available online as the DME (Digital Mozart Edition) in JPEG and PDF format, a service provided by the International Mozarteum Foundation in cooperation with the Packard Humanities Institute.