File contains a program for a centennial concert celebration at McGill University, featuring the McGill Symphony Orchestra and John McKay on piano. Ellen Ballon is cited in the introduction as one of McGill's notable graduates.
File includes a program for Ellen Ballon's concert with the Montreal Symphony Orchestra, conducted by Ernest Ansermet. The file also includes a catalogue Londoof London Records, including Ballon's recording of Heitor Villa-Lobos' Piano Concerto No. 1 with Ansermet.
Fonds contains correspondence, musical scores (piano and orchestral), photographs, a sketch, harmony notebooks, fliers, programs, newspaper clippings, academic journals, a press book, scrapbooks, and letters of composers. The musical scores include several first edition copies and autograph manuscripts. All personal correspondence is incoming correspondence; no outgoing correspondence is included in this fonds.