Subseries consists of records, including correspondence with composers and reports to and correspondence with granting agencies, for works commissioned by Esprit Orchestra. Esprit received commissioning support from Canada Council for the Arts, the Ontario Arts Council, and the Laidlaw Foundation.
Commissioned composers include: David Adamcyk, Robert Aitken, Istvan Anhalt, Sergio Barroso, Bob Becker, John Beckwith, Norma Beecroft, Allan Gordon Bell, Roger Bergs, Rose Bolton, Walter Boudreau, Brian Cherney, Brian Current, Omar Daniel, Paul Dolden, Tomas Dusatko, José Evangelista, Harry Freedman, Paul Frehner, Scott Good, Denis Gougeon, Chris Paul Harman, Vincent Ho, Peter Paul Koprowski, Harry Kucharzyk, Larry Lake, Michael Longtin, Alexina Louie, Raymond Luedeke, Andrew P. MacDonald, Bruce Mather, Maxine McKinley, Phil Nimmons, John Oswald, Alex Pauk, Yannick Plamondon, John Rea, André Ristic, James Rolfe, Erik Ross, Jeffrey Ryan, R. Murray Schafer, Ana Sokolovic, Harry Somers, Barry Truax, Owen Underhill, and John Wyre.