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clippings, performance programmes, personal documents including legal material, photographs, writings, published and unpublished music by Reiner and other composers, audio and visual recordings of Reiner and other performers, books, and awards.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

Consists of autograph letter from Charles Burney to Lady Banks, dated 26 March 1808 and written from Chelsea College. The letter is written in brown ink and has remains of wax seal. The letter contains in particular lengthy discussion of the Italian Ariettes of Vincenzo Righini, printed in English in 1791 and muses upon how they managed to arrive in England, their merits, and the poetry of Dryden, Gray, and Pope. Also mentions the music of an "Italianized German of the name of Pfeiffer."