Mrs. Sallee has adjudicated piano and voice on the local and state level for the Music Teachers National Association as well as for the National Federation of Music Clubs, Civic Talent Shows and Miss America Pageant Preliminaries. Some of the competitions and auditions include:

She has also judged student composition competitions on the state and division level for MTNA as well as for out-of-state competitions in Texas and Arkansas. For several years, she served on the adjudication committee for certification in the South-Central Division of MTNA.

As a substitute conductor for several church choirs, Mrs. Sallee has experience in choral conducting and leading congregational singing. On several occasions, she has rehearsed and conducted her own works for premier performances. Mary is also experienced at conducting piano monster concerts and has served as guest conductor at conventions and concerts throughout Kansas and Oklahoma.