Part of Hellmuth Wolff Organ Collection
The documents in this series include posters for concerts, several of which were given on Wolff’s instruments, as well as drawings and sketches of Wolff organs. These documents are not rolled like the organ plans in Series 1 but rather are spread flat
Part of Sonde Collection
This series consists of background information about Sonde and biographical sketches of its members.
Part of Hellmuth Wolff Organ Collection
This series contains various temperament specifications.
Part of Hellmuth Wolff Organ Collection
This series contains Hellmuth Wolff’s correspondence files. Subseries i contains correspondence between Wolff and various organ builders in English, French and German, primarily related to Wolff’s editorial work for the for the International Society of Organbuilders’ ISO Yearbook 1993, which spanned four years from 1992-1996. Subseries ii contains workshop documents, including opus lists.
Part of Bernard Gagnon Fonds
This series consists of texts written by Bernard Gagnon and an undated, un-authored biographical essay.
Part of Sonde Collection
This series consists of hand-drawn plans for Sonde’s sound sources.
Part of Sonde Collection
This series consists of programs and announcements of Sonde events, in event number order.
Part of Sonde Collection
This series consists of audio recordings of Sonde music.
Part of Sonde Collection
This series consists of scores/instructions for Sonde musical pieces.
Part of Bernard Gagnon Fonds
This series consists of correspondence concerning Bernard Gagnon and his works.