

For fifty of the St. Ann Choir’s fifty-six years, Professor Mahrt has
been the choir’s director. Mahrt is also
director of the Stanford Early Music Singers, president of the Church
Music Association of America, editor of Sacred Music, the C.M.A.A. journal, and publisher at New Liturgical Movement. He also directs chant workshops including several recent workshops with the Benedict XVI Institute for Sacred Music and Divine Worship.
For more about Professor Mahrt and the St. Ann choir’s unique role in
preserving the traditional Gregorian chant and polyphonic music of the church see this California Catholic
Daily article, Palo
Alto’s secret gift to the Church and this Regina Magazine article, Miracle in Palo Alto: How the St. Ann Choir Kept Chant and
Polyphony Alive for 50 Years. Also see this Stanford Magazine article: On Wings of Song: For a Stanford professor and his choir, Gregorian chant is a way of life.

Kerry McCarthy, noted scholar, singer, and biographer of English Renaissance composers William Byrd and Thomas Tallis, is a more-recent former graduate student of Mahrt’s who earned her Ph.D. in 2003 and returned from Portland, Oregon for the party.


Also present was cryptographer Whitfield Diffie, who is famous for his contribution to the Diffie–Hellman algorithm, and who, along with his deceased wife, Mary Fischer (who sang with the choir), has been another long-time friend. Martha Girard, the widow of influential French thinker and Stanford Professor René Girard, was seen sharing photos and reminiscences with Professor Mahrt; until Girard’s death in 2005, the Girards attended (and Martha still attends) the Gregorian Chant Latin Mass at noon on Sundays at St. Thomas Aquinas Church, at which the choir sings.
![]() |
Father Francisco Nahoe and Al Acena |
![]() |
Fr. Thompson and Bill |
Acting Stanford Music Department Chairman, Steven Hinton, and Monsignor Steven Otellini of Nativity Church of Menlo Park both gave eloquent tributes to Professor Mahrt, and Monsignor Otellini gave a blessing.
![]() |
Bill and Monsignor Otellini |
Therese Curotto, who sang in the choir briefly a few years ago,
painted a portrait of Professor Mahrt in a favorite white hat, from a photo she
took at a CMAA Colloquium, and she presented the framed painting to him during
the party.