Fonds contains manuscript musical scores of Harriss' compositions: pieces for the keyboard, some orchestral works, organ music, part-songs and lieder, religious vocal music and patriotic songs. The rest of the fonds comprises a small amount of correspondence, much of it about the Imperial choir (1910), a photocopy of an autobiography covering the period 1862-1885, photographs of Harriss conducting Empire Day concerts (approximately 1920), and programs, 1890, 1924.

Fonds comprises photocopies of three works for the piano, which Blume described as "meine gesammelten Werke" ("my collected works"). Two of these – an arrangement of the "Emperor Waltz", and "Variations on an American Folk-Song" – were written in the Sherbrooke Internment Camp in 1942. The third, "Picture book for Veronika" was written later that year in Toronto.

Fonds consists primarily of Meek’s manuscripts of his keyboard and church music compositions, from approximately 1930-1975. Also included are programmes for his organ recitals, 1928, 1933, 1953-1957, 1960-1968, a scrapbook of clippings concerning his performance of the complete organ works of J.S. Bach, 1949-1950, and lecture notes and examinations for his McGill course in analysis, 1969-1973.