Susan Treacy joined the faculty of Ave Maria University as Professor of Music after having taught at Franciscan University of Steubenville and Luther College. She has also taught as a visiting professor at The Liturgical Institute, University of St. Mary's of the Lake, Mundelein, Illinois. She holds the Ph.D. in historical musicology, and her research interests are in Catholic liturgical music and English devotional song of the sixteenth to eighteenth centuries. Her recent article, "A Chronicle of Attitudes towards Gregorian Chant in Orate Fratres/Worship, 1926-1962," has been published in Paul Collins, ed. Renewal and Resistance: Catholic Church Music from the 1850s to Vatican II (Oxford, UK: Peter Lang, 2010). Her chapter on “Gregorian Chant” is forthcoming in the T & T Clark Companion to the Liturgy, edited by Dom Alcuin Reid. In addition to having published scholarly articles, she writes a regular column, “Musica Donum Dei,” for the Saint Austin Review (StAR) and is a regular contributor to Sacred Music. Director of the AMU Women’s Schola Gregoriana, she directed the Schola Cantorum Franciscana while at Franciscan University. She was a member of the editorial committee for the first edition of The Adoremus Hymnal and is on the Board of Directors of the Church Music Association of America (CMAA).