Born in Canada, Reason began lessons on the piano at the age of 3 . Reason continued to compose throughout her primary school years, earning by age 15 an Associate Degree in Performance from the Royal Conservatory of Music in Toronto.
Reason started her secondary studies at Barrie Central Collegiate Institute where she played the trombone. But, after hearing her play the piano, she was encouraged by a substitute band teacher to apply at the Interlochen Arts Academy in Michigan. Reason auditioned and was awarded a scholarship that allowed her to finish secondary school at the academy. It was during this time that she became interested in contemporary music composition, jazz and free jazz.