 the kind of information that primarily musical manuscripts and printed sources
cannot provide.
The term ‘archive’ is here used as defined under §1 below. It is also widely used in a second sense, to denote what bibliographers
would classify as a ‘collection’ or even ‘library’: the Deutsches Musikgeschichtliches Archiv in Kassel, for example, is a library
of photographic materials relating to sources of German music. Many collections fall halfway between an archive in the strict
sense, consisting of the sur