The members of the Calgary Philharmonic Orchestra are members of The Calgary Musicians Association, Local 547 of the American Federation of Musicians of the United States and Canada. Repertoire often requires extra musicians including: Dongkyun An, cello; Eric Auerbach, violin; Gianetta Baril, harp;
Rolf Bertsch, keyboard; Tim Borton, percussion; Jeremy Brown, saxophone; Stan Climie, clarinet; Neil Cockburn, harpsichord and organ; John Feldberg, bassoon; Gareth Jones, trumpet; Lucie Jones, flute; Janet Kuschak, cello; Malcolm Lim, percussion; Sarah (Gieck) MacDonald, flute; Aura Pon, oboe; Heather Schienbein, flute; Richard Scholz, trumpet; Eva Sztrain, violin; Doug Umana, horn.