The Paul Pedersen Collection consists of Paul Pedersen’s complete portfolio of published and unpublished compositions, sketches, lecture notes and writings. In addition, it contains documentary artifacts including correspondence, teaching and course materials, concert programmes and posters, project reports, etc, that chronicle his early education and life in Alberta and Toronto, through his professorship and deanship at McGill University and finally his appointment of Dean and professor of Music at the University of Toronto.

The Kelsey Jones Collection consists largely of drafts, sketches and texts for nearly all of his major compositional works. It also contains selected correspondence, programs and some personal papers that outline his life and career in music, composition, and teaching. These documents were organized by Kelsey Jones himself, into subject groupings such as: “commissions,” “publishers,” “letters from my teachers,” “letters from interesting people,” etc.

The Julius Schloss Collection consists of Julius Schloss’s complete portfolio of published and unpublished compositions, sketches, studies and analyses. In addition, it contains documentary artefacts, including correspondence, newspaper, magazine and journal clippings, concert and competition programs, media reviews, and photographs, that chronicle both the early life of this German-Jewish composer in Europe and his later days in exile in Shanghai and the United States.
The content of the collection pertains to several lines of historical research: First, Schloss’s close relationship with Alban Berg as a personal assistant and chief copy editor, as well as his interaction with other contemporaries in Vienna during the 1920s, may offer new insight in studies of the Second Viennese School. The items of Bergiana, including a handwritten Baudelaire poem by Berg which served as a “secret program” to the Lyric Suite and a selection of correspondence surrounding Berg’s last wishes for the Lyric Suite score, are particularly valuable. Second, Schloss’s ten-year exile in Shanghai, documented in assorted correspondence, programs, reviews and miscellaneous artefacts, may provide a new account of the Shanghai generation. Finally, the continuation of Schloss’s life in the United States as a struggling composer and teacher bears witness to the difficult conditions for the American émigré population after World War II.

The Donald Mackey Collection consists of the Donald Mackey and Renaissance Singers of Montreal complete portfolio of CBC broadcast programmes and scripts. In addition, the fond contains documentary artifacts including correspondence, concert programmes, photographs, audio recordings and special projects that chronicle Mackey’s career as conductor of the Renaissance Singers of Montreal and his life in Montreal. This includes information about his professorship at the faculty of music of McGill University, his active involvement in Montreal’s vibrant church music scene as organist and conductor, his appointment as University Organist Emeritus, etc.

The Charles Reiner Collection consists of correspondence, newspaper reviews and clippings, performance programmes, personal documents including legal material, photographs, writings, published and unpublished music by Reiner and other composers, audio and visual recordings of Reiner and other performers, books, and awards. Of particular interest is correspondence from Rudolf Serkin, Alfred Cortot, and Kurt Waldheim; legal documents from both before and after Reiner’s immigration to Canada; and the extensive collection of programmes and newspaper clippings that document Reiner’s extensive performance career.