This series consists of a 248-page spiral-bound volume, with a 4-page Introduction. The volume presents edited transcripts of interviews held with 33 persons by Dr. Helmer and his graduate students Rachel Anderson and Katharine Neufeld. The initial transcripts were reviewed by each interviewee and the edited versions presented in this document were approved by them.

This series consists of research materials pertaining to Canadian and American immigration, namely copies of primary and secondary sources as well as notes and charts by Dr. Helmer. The series contains approximately 35 items.

This series consists of unreleased and released audio recordings of Bernard Gagnon music and several interviews.

This series consists of event programs, posters and articles published in the media and in journals about Bernard Gagnon performances.

The Scripts and Writings series contains writings, lectures and talks by Donald Mackey; as well as documentation pertaining to special projects organized and carried out by Donald Mackey (i.e. organ installations and events). The series is organized chronologically.

The Scores series contains copies of various scores of works performed by the Renaissance Singers of Montreal. Additional information provided where possible.

The Audio Recordings series contains 2 audiotape reels and 3 compact discs. Including recordings of Donald Mackey and the Renaissance Singers of Montreal in concert and CBC radio programmes.

The Compositions series contains compositional documentation, 48 original compositions, 14 arrangements, and numerous untitled sketches. The compositions are organized alphabetically by uniform title, with a separate subsection entitled the “Bach Gamba Project”. Composition dates, durations and instrumentations are provided when possible.

The Teaching and Administration series is divided into 3 sections: course materials, administration and miscellaneous university documents. The series contains correspondence to or from Paul Pedersen, lecture/course materials and examples, assignments, examinations (blank and marked), student records and grades, and miscellaneous documents pertaining to courses taught. It also contains documents, information and correspondence to or from Paul Pedersen with respect to administration while employed at McGill University and the University of Toronto, respectively. The series is arranged chronologically, and separated by course name or subject as indicated.