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clippings, performance programmes, personal documents including legal material, photographs, writings, published and unpublished music by Reiner and other composers, audio and visual recordings of Reiner and other performers, books, and awards.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.

The Paul Pedersen Collection consists of Paul Pedersen’s complete portfolio of published and unpublished compositions, sketches, lecture notes and writings.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.