Mason joined the staff of the University of Michigan in Ann Arbor in 1947, became chair of the organ department in 1962, and was named a professor in 1965.

[1] Born in Alva, Oklahoma, Mason enrolled at the University of Michigan (U-M), where she earned both a bachelor's and master's degree in music.

Except for spending one summer in France studying organ with noted artists Maurice Duruflé and Nadia Boulanger, and some additional time earning the Doctor of Sacred Music degree at Union Theological Seminary in New York City, Mason has spent almost her entire career at U-M.[2] Her career as performer, lecturer, adjudicator, and teacher has taken her throughout the western world, at one point performing more than thirty recitals per year.

On the occasion of the 2009 GALA, sponsored by the national council of the American Guild of Organists, she was honored as the seventh in a series of organ teachers/performers who have reached the highest level of success in their profession.

[7] A biographical video retrospective, "A Life's Harmony", was created in 2007 to recognize Mason's exceptional teaching and mentorship.